Finding the Third Proportional to 12,418 and 13,426

Step by Step Solution

1. Step 1: Write the proportion equation
   12,418 : 13,426 = 13,426 : x
2. Step 2: Convert to fraction form
   12,418/13,426 = 13,426/x
3. Step 3: Cross multiply
   12,418x = 13,426 × 13,426
4. Step 4: Simplify right side
   12,418x = 180,257,476
5. Step 5: Solve for x
   x = 180,257,476/12,418
6. Step 6: Final answer
   x = 14,515.82