Finding the Third Proportional to 157,865.20 and 243,025.31

Step by Step Solution

1. Step 1: Write the proportion equation
   157,865.20 : 243,025.31 = 243,025.31 : x
2. Step 2: Convert to fraction form
   157,865.20/243,025.31 = 243,025.31/x
3. Step 3: Cross multiply
   157,865.20x = 243,025.31 × 243,025.31
4. Step 4: Simplify right side
   157,865.20x = 59,061,302,515.72
5. Step 5: Solve for x
   x = 59,061,302,515.72/157,865.20
6. Step 6: Final answer
   x = 374,124.89