Finding the Third Proportional to 25,440 and 55,740

Step by Step Solution

1. Step 1: Write the proportion equation
   25,440 : 55,740 = 55,740 : x
2. Step 2: Convert to fraction form
   25,440/55,740 = 55,740/x
3. Step 3: Cross multiply
   25,440x = 55,740 × 55,740
4. Step 4: Simplify right side
   25,440x = 3,106,947,600
5. Step 5: Solve for x
   x = 3,106,947,600/25,440
6. Step 6: Final answer
   x = 122,128.44