Finding the Third Proportional to 2,186 and 5,099

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186 : 5,099 = 5,099 : x
2. Step 2: Convert to fraction form
   2,186/5,099 = 5,099/x
3. Step 3: Cross multiply
   2,186x = 5,099 × 5,099
4. Step 4: Simplify right side
   2,186x = 25,999,801
5. Step 5: Solve for x
   x = 25,999,801/2,186
6. Step 6: Final answer
   x = 11,893.78