Finding the Third Proportional to 14,640 and 28,540

Step by Step Solution

1. Step 1: Write the proportion equation
   14,640 : 28,540 = 28,540 : x
2. Step 2: Convert to fraction form
   14,640/28,540 = 28,540/x
3. Step 3: Cross multiply
   14,640x = 28,540 × 28,540
4. Step 4: Simplify right side
   14,640x = 814,531,600
5. Step 5: Solve for x
   x = 814,531,600/14,640
6. Step 6: Final answer
   x = 55,637.40