Finding the Third Proportional to 71,561.25 and 155,423.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,561.25 : 155,423.25 = 155,423.25 : x
2. Step 2: Convert to fraction form
   71,561.25/155,423.25 = 155,423.25/x
3. Step 3: Cross multiply
   71,561.25x = 155,423.25 × 155,423.25
4. Step 4: Simplify right side
   71,561.25x = 24,156,386,640.56
5. Step 5: Solve for x
   x = 24,156,386,640.56/71,561.25
6. Step 6: Final answer
   x = 337,562.39