I am trying to create a formula to format a phone number and append an extension if it exists. Here is my formula:

stringVar result;
IF Length ({rptDealerSummaryReport.BusinessPhone}) = 10 Then
result := Mid ({rptDealerSummaryReport.BusinessPhone}, 1, 3) + "-" + Mid ({rptDealerSummaryReport.BusinessPhone}, 4, 3) + "-" + Mid ({rptDealerSummaryReport.BusinessPhone}, 8)
Else
result := {rptDealerSummaryReport.BusinessPhone}

IF Length({rptDealerSummaryReport.BusinessExt}) > 0 Then
result := result + " x" + {rptDealerSummaryReport.BusinessExt}

I get this error before it hits the second IF statement: "The remaining text does not appear to be part of the formula."

It's like it doesn't realize I want two separate IF statements. What am I doing wrong?