Finding the Third Proportional to 8,820 and 16,388

Step by Step Solution

1. Step 1: Write the proportion equation
   8,820 : 16,388 = 16,388 : x
2. Step 2: Convert to fraction form
   8,820/16,388 = 16,388/x
3. Step 3: Cross multiply
   8,820x = 16,388 × 16,388
4. Step 4: Simplify right side
   8,820x = 268,566,544
5. Step 5: Solve for x
   x = 268,566,544/8,820
6. Step 6: Final answer
   x = 30,449.72