Finding the Third Proportional to 12,057.75 and 25,678.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,057.75 : 25,678.13 = 25,678.13 : x
2. Step 2: Convert to fraction form
   12,057.75/25,678.13 = 25,678.13/x
3. Step 3: Cross multiply
   12,057.75x = 25,678.13 × 25,678.13
4. Step 4: Simplify right side
   12,057.75x = 659,366,103.52
5. Step 5: Solve for x
   x = 659,366,103.52/12,057.75
6. Step 6: Final answer
   x = 54,684.01