Finding the Third Proportional to 78,648 and 169,808

Step by Step Solution

1. Step 1: Write the proportion equation
   78,648 : 169,808 = 169,808 : x
2. Step 2: Convert to fraction form
   78,648/169,808 = 169,808/x
3. Step 3: Cross multiply
   78,648x = 169,808 × 169,808
4. Step 4: Simplify right side
   78,648x = 28,834,756,864
5. Step 5: Solve for x
   x = 28,834,756,864/78,648
6. Step 6: Final answer
   x = 366,630.52