Finding the Third Proportional to 57,542.50 and 87,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,542.50 : 87,515.50 = 87,515.50 : x
2. Step 2: Convert to fraction form
   57,542.50/87,515.50 = 87,515.50/x
3. Step 3: Cross multiply
   57,542.50x = 87,515.50 × 87,515.50
4. Step 4: Simplify right side
   57,542.50x = 7,658,962,740.25
5. Step 5: Solve for x
   x = 7,658,962,740.25/57,542.50
6. Step 6: Final answer
   x = 133,100.97