Finding the Third Proportional to 25,360 and 55,424

Step by Step Solution

1. Step 1: Write the proportion equation
   25,360 : 55,424 = 55,424 : x
2. Step 2: Convert to fraction form
   25,360/55,424 = 55,424/x
3. Step 3: Cross multiply
   25,360x = 55,424 × 55,424
4. Step 4: Simplify right side
   25,360x = 3,071,819,776
5. Step 5: Solve for x
   x = 3,071,819,776/25,360
6. Step 6: Final answer
   x = 121,128.54