Finding the Third Proportional to 6,408 and 13,910

Step by Step Solution

1. Step 1: Write the proportion equation
   6,408 : 13,910 = 13,910 : x
2. Step 2: Convert to fraction form
   6,408/13,910 = 13,910/x
3. Step 3: Cross multiply
   6,408x = 13,910 × 13,910
4. Step 4: Simplify right side
   6,408x = 193,488,100
5. Step 5: Solve for x
   x = 193,488,100/6,408
6. Step 6: Final answer
   x = 30,194.77