Finding the Third Proportional to 12,078 and 25,608

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078 : 25,608 = 25,608 : x
2. Step 2: Convert to fraction form
   12,078/25,608 = 25,608/x
3. Step 3: Cross multiply
   12,078x = 25,608 × 25,608
4. Step 4: Simplify right side
   12,078x = 655,769,664
5. Step 5: Solve for x
   x = 655,769,664/12,078
6. Step 6: Final answer
   x = 54,294.56