Finding the Third Proportional to 21,040 and 31,252

Step by Step Solution

1. Step 1: Write the proportion equation
   21,040 : 31,252 = 31,252 : x
2. Step 2: Convert to fraction form
   21,040/31,252 = 31,252/x
3. Step 3: Cross multiply
   21,040x = 31,252 × 31,252
4. Step 4: Simplify right side
   21,040x = 976,687,504
5. Step 5: Solve for x
   x = 976,687,504/21,040
6. Step 6: Final answer
   x = 46,420.51