Finding the Third Proportional to 54,324.42 and 86,441.13

Step by Step Solution

1. Step 1: Write the proportion equation
   54,324.42 : 86,441.13 = 86,441.13 : x
2. Step 2: Convert to fraction form
   54,324.42/86,441.13 = 86,441.13/x
3. Step 3: Cross multiply
   54,324.42x = 86,441.13 × 86,441.13
4. Step 4: Simplify right side
   54,324.42x = 7,472,069,441.91
5. Step 5: Solve for x
   x = 7,472,069,441.91/54,324.42
6. Step 6: Final answer
   x = 137,545.31