Finding the Third Proportional to 12,800 and 13,904

Step by Step Solution

1. Step 1: Write the proportion equation
   12,800 : 13,904 = 13,904 : x
2. Step 2: Convert to fraction form
   12,800/13,904 = 13,904/x
3. Step 3: Cross multiply
   12,800x = 13,904 × 13,904
4. Step 4: Simplify right side
   12,800x = 193,321,216
5. Step 5: Solve for x
   x = 193,321,216/12,800
6. Step 6: Final answer
   x = 15,103.22