Finding the Third Proportional to 11,478 and 25,140

Step by Step Solution

1. Step 1: Write the proportion equation
   11,478 : 25,140 = 25,140 : x
2. Step 2: Convert to fraction form
   11,478/25,140 = 25,140/x
3. Step 3: Cross multiply
   11,478x = 25,140 × 25,140
4. Step 4: Simplify right side
   11,478x = 632,019,600
5. Step 5: Solve for x
   x = 632,019,600/11,478
6. Step 6: Final answer
   x = 55,063.57