Finding the Third Proportional to 21,104 and 31,496

Step by Step Solution

1. Step 1: Write the proportion equation
   21,104 : 31,496 = 31,496 : x
2. Step 2: Convert to fraction form
   21,104/31,496 = 31,496/x
3. Step 3: Cross multiply
   21,104x = 31,496 × 31,496
4. Step 4: Simplify right side
   21,104x = 991,998,016
5. Step 5: Solve for x
   x = 991,998,016/21,104
6. Step 6: Final answer
   x = 47,005.21