Finding the Third Proportional to 72,361.50 and 156,423

Step by Step Solution

1. Step 1: Write the proportion equation
   72,361.50 : 156,423 = 156,423 : x
2. Step 2: Convert to fraction form
   72,361.50/156,423 = 156,423/x
3. Step 3: Cross multiply
   72,361.50x = 156,423 × 156,423
4. Step 4: Simplify right side
   72,361.50x = 24,468,154,929
5. Step 5: Solve for x
   x = 24,468,154,929/72,361.50
6. Step 6: Final answer
   x = 338,137.75