Finding the Third Proportional to 21,018 and 31,441

Step by Step Solution

1. Step 1: Write the proportion equation
   21,018 : 31,441 = 31,441 : x
2. Step 2: Convert to fraction form
   21,018/31,441 = 31,441/x
3. Step 3: Cross multiply
   21,018x = 31,441 × 31,441
4. Step 4: Simplify right side
   21,018x = 988,536,481
5. Step 5: Solve for x
   x = 988,536,481/21,018
6. Step 6: Final answer
   x = 47,032.85