Finding the Third Proportional to 6,158 and 12,679

Step by Step Solution

1. Step 1: Write the proportion equation
   6,158 : 12,679 = 12,679 : x
2. Step 2: Convert to fraction form
   6,158/12,679 = 12,679/x
3. Step 3: Cross multiply
   6,158x = 12,679 × 12,679
4. Step 4: Simplify right side
   6,158x = 160,757,041
5. Step 5: Solve for x
   x = 160,757,041/6,158
6. Step 6: Final answer
   x = 26,105.40