Finding the Third Proportional to 15,449 and 31,443

Step by Step Solution

1. Step 1: Write the proportion equation
   15,449 : 31,443 = 31,443 : x
2. Step 2: Convert to fraction form
   15,449/31,443 = 31,443/x
3. Step 3: Cross multiply
   15,449x = 31,443 × 31,443
4. Step 4: Simplify right side
   15,449x = 988,662,249
5. Step 5: Solve for x
   x = 988,662,249/15,449
6. Step 6: Final answer
   x = 63,995.23