Finding the Third Proportional to 21,146 and 31,474

Step by Step Solution

1. Step 1: Write the proportion equation
   21,146 : 31,474 = 31,474 : x
2. Step 2: Convert to fraction form
   21,146/31,474 = 31,474/x
3. Step 3: Cross multiply
   21,146x = 31,474 × 31,474
4. Step 4: Simplify right side
   21,146x = 990,612,676
5. Step 5: Solve for x
   x = 990,612,676/21,146
6. Step 6: Final answer
   x = 46,846.34