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      <link:roleType roleURI="http://proof-paci.com/role/ClassCommonStockSubjectToPossibleRedemptionDetails" id="ClassCommonStockSubjectToPossibleRedemptionDetails">
        <!--Parent Role: Class A Common Stock Subject to Possible Redemption-->
        <link:definition>090900 - Disclosure - Class A Common Stock Subject to Possible Redemption (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://proof-paci.com/role/FairValueMeasurementsDetails" id="FairValueMeasurementsDetails">
        <!--Parent Role: FAIR VALUE MEASUREMENTS-->
        <link:definition>091000 - Disclosure - FAIR VALUE MEASUREMENTS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://proof-paci.com/role/TaxesDetails" id="TaxesDetails">
        <!--Parent Role: TAXES-->
        <link:definition>091100 - Disclosure - TAXES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
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  <xs:import namespace="http://fasb.org/us-gaap/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/dei/2022" schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/country/2022" schemaLocation="https://xbrl.sec.gov/country/2022/country-2022.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/currency/2022" schemaLocation="https://xbrl.sec.gov/currency/2022/currency-2022.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/exch/2022" schemaLocation="https://xbrl.sec.gov/exch/2022/exch-2022.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/naics/2022" schemaLocation="https://xbrl.sec.gov/naics/2022/naics-2022.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/sic/2022" schemaLocation="https://xbrl.sec.gov/sic/2022/sic-2022.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/stpr/2022" schemaLocation="https://xbrl.sec.gov/stpr/2022/stpr-2022.xsd" />
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2004/ref" schemaLocation="http://www.xbrl.org/2004/ref-2004-08-10.xsd" />
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xs:import namespace="http://fasb.org/us-types/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-types-2022.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
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  <xs:element name="RedeemableWarrantsMember" id="paci_RedeemableWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GeneralAndAdministrativeSupportAgreementAbstract" id="paci_GeneralAndAdministrativeSupportAgreementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="UtilitiesAndSecretarialAndAdministrativeSupportPeriod" id="paci_UtilitiesAndSecretarialAndAdministrativeSupportPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="GeneralAndAdministrativeSupportAgreementMember" id="paci_GeneralAndAdministrativeSupportAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OfferingCostsAssociatedWithAPublicOfferingAbstract" id="paci_OfferingCostsAssociatedWithAPublicOfferingAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="UnderwritingFees" id="paci_UnderwritingFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="UnderwritingFeesDeferred" id="paci_UnderwritingFeesDeferred" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="OtherOfferingCosts" id="paci_OtherOfferingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="DeferredUnderwritingCommissionsNonCurrent" id="paci_DeferredUnderwritingCommissionsNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="LiquidityAndCapitalResourcesAbstract" id="paci_LiquidityAndCapitalResourcesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WorkingCapitalDeficitAmount" id="paci_WorkingCapitalDeficitAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="PromissoryNoteMember" id="paci_PromissoryNoteMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PrivatePlacementsAbstract" id="paci_PrivatePlacementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PrivatePlacementTextBlock" id="paci_PrivatePlacementTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PrivatePlacementWarrantMember" id="paci_PrivatePlacementWarrantMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PrivatePlacementWarrantsAbstract" id="paci_PrivatePlacementWarrantsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ClassOfWarrantOrRightHoldingPeriod" id="paci_ClassOfWarrantOrRightHoldingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ClassOfWarrantOrRightIssued" id="paci_ClassOfWarrantOrRightIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="SponsorAffiliateOfSponsorOrCertainCompanyOfficersAndDirectorsMember" id="paci_SponsorAffiliateOfSponsorOrCertainCompanyOfficersAndDirectorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WorkingCapitalLoansMember" id="paci_WorkingCapitalLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PrivatePlacementWarrantsProceedsInExcessOfFairValue" id="paci_PrivatePlacementWarrantsProceedsInExcessOfFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="ReMeasurementOfClassAOrdinarySharesSubjectToPossibleRedemption" id="paci_ReMeasurementOfClassAOrdinarySharesSubjectToPossibleRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="GainLossOnSettlementsOfDeferredUnderwritingCommission" id="paci_GainLossOnSettlementsOfDeferredUnderwritingCommission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="InitialPublicOfferingAbstract" id="paci_InitialPublicOfferingAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InitialPublicOfferingTextBlock" id="paci_InitialPublicOfferingTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="InitialPublicOfferingOfUnitsAbstract" id="paci_InitialPublicOfferingOfUnitsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="UnitsNumberOfSecuritiesCalledByUnits" id="paci_UnitsNumberOfSecuritiesCalledByUnits" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="UnitsIssuedDuringPeriodSharesNewIssues" id="paci_UnitsIssuedDuringPeriodSharesNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PublicSharesMember" id="paci_PublicSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PublicWarrantMember" id="paci_PublicWarrantMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InvestmentsHeldInTrustAccountAbstract" id="paci_InvestmentsHeldInTrustAccountAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="StockConversionRatio" id="paci_StockConversionRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="StockConversionAsConvertedPercentage" id="paci_StockConversionAsConvertedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="CommonStockVotesPerShare" id="paci_CommonStockVotesPerShare" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RegistrationRightsAbstract" id="paci_RegistrationRightsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NumberOfDemandsEligibleSecurityHolderCanMake" id="paci_NumberOfDemandsEligibleSecurityHolderCanMake" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="UnderwritingAgreementAbstract" id="paci_UnderwritingAgreementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="UnderwritingDiscount" id="paci_UnderwritingDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="UnderwritingDiscountFee" id="paci_UnderwritingDiscountFee" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="OptionForUnderwritersToPurchaseAdditionalUnitsTerm" id="paci_OptionForUnderwritersToPurchaseAdditionalUnitsTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AdditionalUnitsThatCanBePurchasedToCoverOverAllotments" id="paci_AdditionalUnitsThatCanBePurchasedToCoverOverAllotments" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="DeferredUnderwriterFeeDiscountPerShare" id="paci_DeferredUnderwriterFeeDiscountPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="ConsultingAgreementAbstract" id="paci_ConsultingAgreementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ClassAOrdinarySharesSubjectToPossibleRedemptionAbstract" id="paci_ClassAOrdinarySharesSubjectToPossibleRedemptionAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PeriodForRegistrationStatementToBecomeEffective" id="paci_PeriodForRegistrationStatementToBecomeEffective" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PeriodToExerciseWarrantsAfterBusinessCombination" id="paci_PeriodToExerciseWarrantsAfterBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ThresholdConsecutiveTradingDays" id="paci_ThresholdConsecutiveTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" id="paci_ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="NoticePeriodToRedeemWarrants" id="paci_NoticePeriodToRedeemWarrants" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PeriodToExerciseWarrantsAfterPublicOfferings" id="paci_PeriodToExerciseWarrantsAfterPublicOfferings" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="WarrantsAndRightsSubjectToMandatoryRedemptionOneMember" id="paci_WarrantsAndRightsSubjectToMandatoryRedemptionOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WarrantsAndRightsSubjectToMandatoryRedemptionTwoMember" id="paci_WarrantsAndRightsSubjectToMandatoryRedemptionTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SecondOfferingMember" id="paci_SecondOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ClassOfWarrantOrRightRedemptionPeriod" id="paci_ClassOfWarrantOrRightRedemptionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PeriodToFileRegistrationStatement" id="paci_PeriodToFileRegistrationStatement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ThresholdTradingDays" id="paci_ThresholdTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="HoldingPeriodForTransferAssignmentOrSaleOfWarrants" id="paci_HoldingPeriodForTransferAssignmentOrSaleOfWarrants" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="FounderSharesMember" id="paci_FounderSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FounderSharesAbstract" id="paci_FounderSharesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OwnershipInterestPercentageThreshold" id="paci_OwnershipInterestPercentageThreshold" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="DirectorAndOfficerMember" id="paci_DirectorAndOfficerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="HoldingPeriodForTransferAssignmentOrSaleOfFounderShares" id="paci_HoldingPeriodForTransferAssignmentOrSaleOfFounderShares" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PeriodAfterInitialBusinessCombination" id="paci_PeriodAfterInitialBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="TemporaryEquitySharesSubjectToPossibleRedemptionTextBlock" id="paci_TemporaryEquitySharesSubjectToPossibleRedemptionTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="CommonStockVotingRightsNumberOfVotes" id="paci_CommonStockVotingRightsNumberOfVotes" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="OfferingCostsAllocatedToCommonStockSubjectToPossibleRedemption" id="paci_OfferingCostsAllocatedToCommonStockSubjectToPossibleRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="InitialValueOfClassACommonStockSubjectToPossibleRedemption" id="paci_InitialValueOfClassACommonStockSubjectToPossibleRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="DeferredUnderwritingFeeWrittenOffIncurred" id="paci_DeferredUnderwritingFeeWrittenOffIncurred" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OrganizationAndBusinessOperationsTable" id="paci_OrganizationAndBusinessOperationsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OrganizationAndBusinessOperationsLineItems" id="paci_OrganizationAndBusinessOperationsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PeriodToRedeemPublicSharesIfBusinessCombinationIsNotCompletedWithinInitialCombinationPeriod" id="paci_PeriodToRedeemPublicSharesIfBusinessCombinationIsNotCompletedWithinInitialCombinationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="InterestOnTrustAccountToBeHeldToPayDissolutionExpenses" id="paci_InterestOnTrustAccountToBeHeldToPayDissolutionExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="IncreaseInSaleOfStockPricePerShare" id="paci_IncreaseInSaleOfStockPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="NetTangibleAssetsThresholdForRedeemingPublicShares" id="paci_NetTangibleAssetsThresholdForRedeemingPublicShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="InitialPublicOfferingUnitsSoldOneMember" id="paci_InitialPublicOfferingUnitsSoldOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NumberOfOperatingBusinessesIncludedInInitialBusinessCombination" id="paci_NumberOfOperatingBusinessesIncludedInInitialBusinessCombination" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="FairMarketValueAsPercentageOfNetAssetsHeldInTrustAccountIncludedInInitialBusinessCombination" id="paci_FairMarketValueAsPercentageOfNetAssetsHeldInTrustAccountIncludedInInitialBusinessCombination" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="InitialPublicOfferingUnitsSoldTwoMember" id="paci_InitialPublicOfferingUnitsSoldTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PercentageOfPublicSharesThatWouldNotBeRedeemedIfBusinessCombinationIsNotCompletedWithinInitialCombinationPeriod" id="paci_PercentageOfPublicSharesThatWouldNotBeRedeemedIfBusinessCombinationIsNotCompletedWithinInitialCombinationPeriod" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PostTransactionOwnershipPercentageOfTheTargetBusiness" id="paci_PostTransactionOwnershipPercentageOfTheTargetBusiness" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ExtensionPeriodToCompleteBusinessCombination" id="paci_ExtensionPeriodToCompleteBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PercentageOfPublicSharesThatCanBeRedeemedWithoutPriorConsent" id="paci_PercentageOfPublicSharesThatCanBeRedeemedWithoutPriorConsent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AdditionalTimePeriodToConsummateInitialBusinessCombination" id="paci_AdditionalTimePeriodToConsummateInitialBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DeferredUnderwritingCommissions" id="paci_DeferredUnderwritingCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
</xs:schema>
