Finding the Third Proportional to 71,563.50 and 155,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,563.50 : 155,428.50 = 155,428.50 : x
2. Step 2: Convert to fraction form
   71,563.50/155,428.50 = 155,428.50/x
3. Step 3: Cross multiply
   71,563.50x = 155,428.50 × 155,428.50
4. Step 4: Simplify right side
   71,563.50x = 24,158,018,612.25
5. Step 5: Solve for x
   x = 24,158,018,612.25/71,563.50
6. Step 6: Final answer
   x = 337,574.58