Finding the Third Proportional to 157,401 and 249,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   157,401 : 249,223.50 = 249,223.50 : x
2. Step 2: Convert to fraction form
   157,401/249,223.50 = 249,223.50/x
3. Step 3: Cross multiply
   157,401x = 249,223.50 × 249,223.50
4. Step 4: Simplify right side
   157,401x = 62,112,352,952.25
5. Step 5: Solve for x
   x = 62,112,352,952.25/157,401
6. Step 6: Final answer
   x = 394,612.19