Finding the Third Proportional to 39,792 and 59,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,792 : 59,788.50 = 59,788.50 : x
2. Step 2: Convert to fraction form
   39,792/59,788.50 = 59,788.50/x
3. Step 3: Cross multiply
   39,792x = 59,788.50 × 59,788.50
4. Step 4: Simplify right side
   39,792x = 3,574,664,732.25
5. Step 5: Solve for x
   x = 3,574,664,732.25/39,792
6. Step 6: Final answer
   x = 89,833.75