Finding the Third Proportional to 9,150 and 21,576

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150 : 21,576 = 21,576 : x
2. Step 2: Convert to fraction form
   9,150/21,576 = 21,576/x
3. Step 3: Cross multiply
   9,150x = 21,576 × 21,576
4. Step 4: Simplify right side
   9,150x = 465,523,776
5. Step 5: Solve for x
   x = 465,523,776/9,150
6. Step 6: Final answer
   x = 50,876.92