Finding the Third Proportional to 158,384 and 329,828

Step by Step Solution

1. Step 1: Write the proportion equation
   158,384 : 329,828 = 329,828 : x
2. Step 2: Convert to fraction form
   158,384/329,828 = 329,828/x
3. Step 3: Cross multiply
   158,384x = 329,828 × 329,828
4. Step 4: Simplify right side
   158,384x = 108,786,509,584
5. Step 5: Solve for x
   x = 108,786,509,584/158,384
6. Step 6: Final answer
   x = 686,852.90