I have interest deduction of 35529 and loan outstanding of 1043756 how do I compute what the interest limit amount is?

I Assume this is a mortgage on your main home?  Ihaven’t used this section of TurboTax so I don’t know if the program is suppose to calculate it for you, but to do this manually:

Take the January 1 balance, let’s guess $110,000 and the mortgage limit of $750,000, your deductible interest was 68.1% of the total.  At the end of the year, your interest was 71.9% deductible.  Average beginning and ending to get a final number of 70%.  70% of 35529 is 24870.