Finding the Third Proportional to 25,400 and 55,040

Step by Step Solution

1. Step 1: Write the proportion equation
   25,400 : 55,040 = 55,040 : x
2. Step 2: Convert to fraction form
   25,400/55,040 = 55,040/x
3. Step 3: Cross multiply
   25,400x = 55,040 × 55,040
4. Step 4: Simplify right side
   25,400x = 3,029,401,600
5. Step 5: Solve for x
   x = 3,029,401,600/25,400
6. Step 6: Final answer
   x = 119,267.78