Finding the Third Proportional to 39,391.50 and 59,115.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,391.50 : 59,115.75 = 59,115.75 : x
2. Step 2: Convert to fraction form
   39,391.50/59,115.75 = 59,115.75/x
3. Step 3: Cross multiply
   39,391.50x = 59,115.75 × 59,115.75
4. Step 4: Simplify right side
   39,391.50x = 3,494,671,898.06
5. Step 5: Solve for x
   x = 3,494,671,898.06/39,391.50
6. Step 6: Final answer
   x = 88,716.40