Finding the Third Proportional to 14,123 and 21,021

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123 : 21,021 = 21,021 : x
2. Step 2: Convert to fraction form
   14,123/21,021 = 21,021/x
3. Step 3: Cross multiply
   14,123x = 21,021 × 21,021
4. Step 4: Simplify right side
   14,123x = 441,882,441
5. Step 5: Solve for x
   x = 441,882,441/14,123
6. Step 6: Final answer
   x = 31,288.14