Finding the Third Proportional to 156,820.50 and 243,168.75

Step by Step Solution

1. Step 1: Write the proportion equation
   156,820.50 : 243,168.75 = 243,168.75 : x
2. Step 2: Convert to fraction form
   156,820.50/243,168.75 = 243,168.75/x
3. Step 3: Cross multiply
   156,820.50x = 243,168.75 × 243,168.75
4. Step 4: Simplify right side
   156,820.50x = 59,131,040,976.56
5. Step 5: Solve for x
   x = 59,131,040,976.56/156,820.50
6. Step 6: Final answer
   x = 377,061.93