Finding the Third Proportional to 21,247 and 31,249

Step by Step Solution

1. Step 1: Write the proportion equation
   21,247 : 31,249 = 31,249 : x
2. Step 2: Convert to fraction form
   21,247/31,249 = 31,249/x
3. Step 3: Cross multiply
   21,247x = 31,249 × 31,249
4. Step 4: Simplify right side
   21,247x = 976,500,001
5. Step 5: Solve for x
   x = 976,500,001/21,247
6. Step 6: Final answer
   x = 45,959.43