Finding the Third Proportional to 14,251 and 21,256

Step by Step Solution

1. Step 1: Write the proportion equation
   14,251 : 21,256 = 21,256 : x
2. Step 2: Convert to fraction form
   14,251/21,256 = 21,256/x
3. Step 3: Cross multiply
   14,251x = 21,256 × 21,256
4. Step 4: Simplify right side
   14,251x = 451,817,536
5. Step 5: Solve for x
   x = 451,817,536/14,251
6. Step 6: Final answer
   x = 31,704.27