Finding the Third Proportional to 80,736 and 168,864

Step by Step Solution

1. Step 1: Write the proportion equation
   80,736 : 168,864 = 168,864 : x
2. Step 2: Convert to fraction form
   80,736/168,864 = 168,864/x
3. Step 3: Cross multiply
   80,736x = 168,864 × 168,864
4. Step 4: Simplify right side
   80,736x = 28,515,050,496
5. Step 5: Solve for x
   x = 28,515,050,496/80,736
6. Step 6: Final answer
   x = 353,188.79