Finding the Third Proportional to 158,143.50 and 231,624

Step by Step Solution

1. Step 1: Write the proportion equation
   158,143.50 : 231,624 = 231,624 : x
2. Step 2: Convert to fraction form
   158,143.50/231,624 = 231,624/x
3. Step 3: Cross multiply
   158,143.50x = 231,624 × 231,624
4. Step 4: Simplify right side
   158,143.50x = 53,649,677,376
5. Step 5: Solve for x
   x = 53,649,677,376/158,143.50
6. Step 6: Final answer
   x = 339,246.81