Finding the Third Proportional to 155,250 and 249,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,250 : 249,490.50 = 249,490.50 : x
2. Step 2: Convert to fraction form
   155,250/249,490.50 = 249,490.50/x
3. Step 3: Cross multiply
   155,250x = 249,490.50 × 249,490.50
4. Step 4: Simplify right side
   155,250x = 62,245,509,590.25
5. Step 5: Solve for x
   x = 62,245,509,590.25/155,250
6. Step 6: Final answer
   x = 400,937.26