Finding the Third Proportional to 60,559.50 and 86,687.25

Step by Step Solution

1. Step 1: Write the proportion equation
   60,559.50 : 86,687.25 = 86,687.25 : x
2. Step 2: Convert to fraction form
   60,559.50/86,687.25 = 86,687.25/x
3. Step 3: Cross multiply
   60,559.50x = 86,687.25 × 86,687.25
4. Step 4: Simplify right side
   60,559.50x = 7,514,679,312.56
5. Step 5: Solve for x
   x = 7,514,679,312.56/60,559.50
6. Step 6: Final answer
   x = 124,087.54