Finding the Third Proportional to 142,281 and 329,397

Step by Step Solution

1. Step 1: Write the proportion equation
   142,281 : 329,397 = 329,397 : x
2. Step 2: Convert to fraction form
   142,281/329,397 = 329,397/x
3. Step 3: Cross multiply
   142,281x = 329,397 × 329,397
4. Step 4: Simplify right side
   142,281x = 108,502,383,609
5. Step 5: Solve for x
   x = 108,502,383,609/142,281
6. Step 6: Final answer
   x = 762,592.22