Finding the Third Proportional to 8,800 and 12,912

Step by Step Solution

1. Step 1: Write the proportion equation
   8,800 : 12,912 = 12,912 : x
2. Step 2: Convert to fraction form
   8,800/12,912 = 12,912/x
3. Step 3: Cross multiply
   8,800x = 12,912 × 12,912
4. Step 4: Simplify right side
   8,800x = 166,719,744
5. Step 5: Solve for x
   x = 166,719,744/8,800
6. Step 6: Final answer
   x = 18,945.43