Finding the Third Proportional to 78,672 and 169,908

Step by Step Solution

1. Step 1: Write the proportion equation
   78,672 : 169,908 = 169,908 : x
2. Step 2: Convert to fraction form
   78,672/169,908 = 169,908/x
3. Step 3: Cross multiply
   78,672x = 169,908 × 169,908
4. Step 4: Simplify right side
   78,672x = 28,868,728,464
5. Step 5: Solve for x
   x = 28,868,728,464/78,672
6. Step 6: Final answer
   x = 366,950.48