Finding the Third Proportional to 4,886 and 12,151

Step by Step Solution

1. Step 1: Write the proportion equation
   4,886 : 12,151 = 12,151 : x
2. Step 2: Convert to fraction form
   4,886/12,151 = 12,151/x
3. Step 3: Cross multiply
   4,886x = 12,151 × 12,151
4. Step 4: Simplify right side
   4,886x = 147,646,801
5. Step 5: Solve for x
   x = 147,646,801/4,886
6. Step 6: Final answer
   x = 30,218.34