Finding the Third Proportional to 78,807 and 168,684

Step by Step Solution

1. Step 1: Write the proportion equation
   78,807 : 168,684 = 168,684 : x
2. Step 2: Convert to fraction form
   78,807/168,684 = 168,684/x
3. Step 3: Cross multiply
   78,807x = 168,684 × 168,684
4. Step 4: Simplify right side
   78,807x = 28,454,291,856
5. Step 5: Solve for x
   x = 28,454,291,856/78,807
6. Step 6: Final answer
   x = 361,063.00