Finding the Third Proportional to 158,870 and 330,808

Step by Step Solution

1. Step 1: Write the proportion equation
   158,870 : 330,808 = 330,808 : x
2. Step 2: Convert to fraction form
   158,870/330,808 = 330,808/x
3. Step 3: Cross multiply
   158,870x = 330,808 × 330,808
4. Step 4: Simplify right side
   158,870x = 109,433,932,864
5. Step 5: Solve for x
   x = 109,433,932,864/158,870
6. Step 6: Final answer
   x = 688,826.92