Finding the Third Proportional to 71,860.50 and 155,945.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,860.50 : 155,945.25 = 155,945.25 : x
2. Step 2: Convert to fraction form
   71,860.50/155,945.25 = 155,945.25/x
3. Step 3: Cross multiply
   71,860.50x = 155,945.25 × 155,945.25
4. Step 4: Simplify right side
   71,860.50x = 24,318,920,997.56
5. Step 5: Solve for x
   x = 24,318,920,997.56/71,860.50
6. Step 6: Final answer
   x = 338,418.48