Finding the Third Proportional to 38,287.69 and 54,211.78

Step by Step Solution

1. Step 1: Write the proportion equation
   38,287.69 : 54,211.78 = 54,211.78 : x
2. Step 2: Convert to fraction form
   38,287.69/54,211.78 = 54,211.78/x
3. Step 3: Cross multiply
   38,287.69x = 54,211.78 × 54,211.78
4. Step 4: Simplify right side
   38,287.69x = 2,938,917,226.30
5. Step 5: Solve for x
   x = 2,938,917,226.30/38,287.69
6. Step 6: Final answer
   x = 76,758.81