Finding the Third Proportional to 78,451.50 and 169,782

Step by Step Solution

1. Step 1: Write the proportion equation
   78,451.50 : 169,782 = 169,782 : x
2. Step 2: Convert to fraction form
   78,451.50/169,782 = 169,782/x
3. Step 3: Cross multiply
   78,451.50x = 169,782 × 169,782
4. Step 4: Simplify right side
   78,451.50x = 28,825,927,524
5. Step 5: Solve for x
   x = 28,825,927,524/78,451.50
6. Step 6: Final answer
   x = 367,436.28