Finding the Third Proportional to 25,240.78 and 39,078.28

Step by Step Solution

1. Step 1: Write the proportion equation
   25,240.78 : 39,078.28 = 39,078.28 : x
2. Step 2: Convert to fraction form
   25,240.78/39,078.28 = 39,078.28/x
3. Step 3: Cross multiply
   25,240.78x = 39,078.28 × 39,078.28
4. Step 4: Simplify right side
   25,240.78x = 1,527,112,065.45
5. Step 5: Solve for x
   x = 1,527,112,065.45/25,240.78
6. Step 6: Final answer
   x = 60,501.77