Finding the Third Proportional to 142,468.50 and 221,474

Step by Step Solution

1. Step 1: Write the proportion equation
   142,468.50 : 221,474 = 221,474 : x
2. Step 2: Convert to fraction form
   142,468.50/221,474 = 221,474/x
3. Step 3: Cross multiply
   142,468.50x = 221,474 × 221,474
4. Step 4: Simplify right side
   142,468.50x = 49,050,732,676
5. Step 5: Solve for x
   x = 49,050,732,676/142,468.50
6. Step 6: Final answer
   x = 344,291.77