Finding the Third Proportional to 39,892.50 and 58,542.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,892.50 : 58,542.75 = 58,542.75 : x
2. Step 2: Convert to fraction form
   39,892.50/58,542.75 = 58,542.75/x
3. Step 3: Cross multiply
   39,892.50x = 58,542.75 × 58,542.75
4. Step 4: Simplify right side
   39,892.50x = 3,427,253,577.56
5. Step 5: Solve for x
   x = 3,427,253,577.56/39,892.50
6. Step 6: Final answer
   x = 85,912.23