Finding the Third Proportional to 15,552 and 21,024

Step by Step Solution

1. Step 1: Write the proportion equation
   15,552 : 21,024 = 21,024 : x
2. Step 2: Convert to fraction form
   15,552/21,024 = 21,024/x
3. Step 3: Cross multiply
   15,552x = 21,024 × 21,024
4. Step 4: Simplify right side
   15,552x = 442,008,576
5. Step 5: Solve for x
   x = 442,008,576/15,552
6. Step 6: Final answer
   x = 28,421.33