Finding the Third Proportional to 60,711.50 and 91,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,711.50 : 91,887.50 = 91,887.50 : x
2. Step 2: Convert to fraction form
   60,711.50/91,887.50 = 91,887.50/x
3. Step 3: Cross multiply
   60,711.50x = 91,887.50 × 91,887.50
4. Step 4: Simplify right side
   60,711.50x = 8,443,312,656.25
5. Step 5: Solve for x
   x = 8,443,312,656.25/60,711.50
6. Step 6: Final answer
   x = 139,072.71