Finding the Third Proportional to 151,691 and 329,856

Step by Step Solution

1. Step 1: Write the proportion equation
   151,691 : 329,856 = 329,856 : x
2. Step 2: Convert to fraction form
   151,691/329,856 = 329,856/x
3. Step 3: Cross multiply
   151,691x = 329,856 × 329,856
4. Step 4: Simplify right side
   151,691x = 108,804,980,736
5. Step 5: Solve for x
   x = 108,804,980,736/151,691
6. Step 6: Final answer
   x = 717,280.40