Finding the Third Proportional to 158,182 and 329,486

Step by Step Solution

1. Step 1: Write the proportion equation
   158,182 : 329,486 = 329,486 : x
2. Step 2: Convert to fraction form
   158,182/329,486 = 329,486/x
3. Step 3: Cross multiply
   158,182x = 329,486 × 329,486
4. Step 4: Simplify right side
   158,182x = 108,561,024,196
5. Step 5: Solve for x
   x = 108,561,024,196/158,182
6. Step 6: Final answer
   x = 686,304.54