Finding the Third Proportional to 72,479.25 and 108,381.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,479.25 : 108,381.38 = 108,381.38 : x
2. Step 2: Convert to fraction form
   72,479.25/108,381.38 = 108,381.38/x
3. Step 3: Cross multiply
   72,479.25x = 108,381.38 × 108,381.38
4. Step 4: Simplify right side
   72,479.25x = 11,746,522,446.89
5. Step 5: Solve for x
   x = 11,746,522,446.89/72,479.25
6. Step 6: Final answer
   x = 162,067.38