Finding the Third Proportional to 8,818 and 13,650

Step by Step Solution

1. Step 1: Write the proportion equation
   8,818 : 13,650 = 13,650 : x
2. Step 2: Convert to fraction form
   8,818/13,650 = 13,650/x
3. Step 3: Cross multiply
   8,818x = 13,650 × 13,650
4. Step 4: Simplify right side
   8,818x = 186,322,500
5. Step 5: Solve for x
   x = 186,322,500/8,818
6. Step 6: Final answer
   x = 21,129.79