Finding the Third Proportional to 13,728 and 21,536

Step by Step Solution

1. Step 1: Write the proportion equation
   13,728 : 21,536 = 21,536 : x
2. Step 2: Convert to fraction form
   13,728/21,536 = 21,536/x
3. Step 3: Cross multiply
   13,728x = 21,536 × 21,536
4. Step 4: Simplify right side
   13,728x = 463,799,296
5. Step 5: Solve for x
   x = 463,799,296/13,728
6. Step 6: Final answer
   x = 33,784.91