Finding the Third Proportional to 5,401 and 11,818

Step by Step Solution

1. Step 1: Write the proportion equation
   5,401 : 11,818 = 11,818 : x
2. Step 2: Convert to fraction form
   5,401/11,818 = 11,818/x
3. Step 3: Cross multiply
   5,401x = 11,818 × 11,818
4. Step 4: Simplify right side
   5,401x = 139,665,124
5. Step 5: Solve for x
   x = 139,665,124/5,401
6. Step 6: Final answer
   x = 25,859.12