Finding the Third Proportional to 231,947.25 and 359,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   231,947.25 : 359,143.50 = 359,143.50 : x
2. Step 2: Convert to fraction form
   231,947.25/359,143.50 = 359,143.50/x
3. Step 3: Cross multiply
   231,947.25x = 359,143.50 × 359,143.50
4. Step 4: Simplify right side
   231,947.25x = 128,984,053,592.25
5. Step 5: Solve for x
   x = 128,984,053,592.25/231,947.25
6. Step 6: Final answer
   x = 556,092.19