Finding the Third Proportional to 10,384 and 21,728

Step by Step Solution

1. Step 1: Write the proportion equation
   10,384 : 21,728 = 21,728 : x
2. Step 2: Convert to fraction form
   10,384/21,728 = 21,728/x
3. Step 3: Cross multiply
   10,384x = 21,728 × 21,728
4. Step 4: Simplify right side
   10,384x = 472,105,984
5. Step 5: Solve for x
   x = 472,105,984/10,384
6. Step 6: Final answer
   x = 45,464.75