Finding the Third Proportional to 2,166 and 5,244

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166 : 5,244 = 5,244 : x
2. Step 2: Convert to fraction form
   2,166/5,244 = 5,244/x
3. Step 3: Cross multiply
   2,166x = 5,244 × 5,244
4. Step 4: Simplify right side
   2,166x = 27,499,536
5. Step 5: Solve for x
   x = 27,499,536/2,166
6. Step 6: Final answer
   x = 12,696