Finding the Third Proportional to 78,868 and 168,808

Step by Step Solution

1. Step 1: Write the proportion equation
   78,868 : 168,808 = 168,808 : x
2. Step 2: Convert to fraction form
   78,868/168,808 = 168,808/x
3. Step 3: Cross multiply
   78,868x = 168,808 × 168,808
4. Step 4: Simplify right side
   78,868x = 28,496,140,864
5. Step 5: Solve for x
   x = 28,496,140,864/78,868
6. Step 6: Final answer
   x = 361,314.36