Finding the Third Proportional to 156,539.25 and 338,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,539.25 : 338,089.50 = 338,089.50 : x
2. Step 2: Convert to fraction form
   156,539.25/338,089.50 = 338,089.50/x
3. Step 3: Cross multiply
   156,539.25x = 338,089.50 × 338,089.50
4. Step 4: Simplify right side
   156,539.25x = 114,304,510,010.25
5. Step 5: Solve for x
   x = 114,304,510,010.25/156,539.25
6. Step 6: Final answer
   x = 730,197.12