Finding the Third Proportional to 142,454.50 and 221,452

Step by Step Solution

1. Step 1: Write the proportion equation
   142,454.50 : 221,452 = 221,452 : x
2. Step 2: Convert to fraction form
   142,454.50/221,452 = 221,452/x
3. Step 3: Cross multiply
   142,454.50x = 221,452 × 221,452
4. Step 4: Simplify right side
   142,454.50x = 49,040,988,304
5. Step 5: Solve for x
   x = 49,040,988,304/142,454.50
6. Step 6: Final answer
   x = 344,257.21