Finding the Third Proportional to 26,139.38 and 57,278.81

Step by Step Solution

1. Step 1: Write the proportion equation
   26,139.38 : 57,278.81 = 57,278.81 : x
2. Step 2: Convert to fraction form
   26,139.38/57,278.81 = 57,278.81/x
3. Step 3: Cross multiply
   26,139.38x = 57,278.81 × 57,278.81
4. Step 4: Simplify right side
   26,139.38x = 3,280,862,361.41
5. Step 5: Solve for x
   x = 3,280,862,361.41/26,139.38
6. Step 6: Final answer
   x = 125,514.19