Finding the Third Proportional to 12,606 and 26,426

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606 : 26,426 = 26,426 : x
2. Step 2: Convert to fraction form
   12,606/26,426 = 26,426/x
3. Step 3: Cross multiply
   12,606x = 26,426 × 26,426
4. Step 4: Simplify right side
   12,606x = 698,333,476
5. Step 5: Solve for x
   x = 698,333,476/12,606
6. Step 6: Final answer
   x = 55,396.91