Finding the Third Proportional to 60,560.50 and 86,688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,560.50 : 86,688.50 = 86,688.50 : x
2. Step 2: Convert to fraction form
   60,560.50/86,688.50 = 86,688.50/x
3. Step 3: Cross multiply
   60,560.50x = 86,688.50 × 86,688.50
4. Step 4: Simplify right side
   60,560.50x = 7,514,896,032.25
5. Step 5: Solve for x
   x = 7,514,896,032.25/60,560.50
6. Step 6: Final answer
   x = 124,089.07