Finding the Third Proportional to 158,355 and 329,815.13

Step by Step Solution

1. Step 1: Write the proportion equation
   158,355 : 329,815.13 = 329,815.13 : x
2. Step 2: Convert to fraction form
   158,355/329,815.13 = 329,815.13/x
3. Step 3: Cross multiply
   158,355x = 329,815.13 × 329,815.13
4. Step 4: Simplify right side
   158,355x = 108,778,016,678.77
5. Step 5: Solve for x
   x = 108,778,016,678.77/158,355
6. Step 6: Final answer
   x = 686,925.05