Answer:
The amount borrowed is $82,500
Step-by-step explanation:
The computation of the amount borrowed is shown below:
But before that we do the following calculations
Total Periods is 
= 30 × 12 
= 360 
 Interest Rate = 7.8% ÷ 12 = 0.65% 
Now
 Amount Borrowed is 
 = $593.90 × (PVA $1 for 360 Periods at 0.65%) 
= $593.90 × (138.913874 ) 
= $82,500
Hence the amount borrowed is $82,500