Finding the Third Proportional to 12,697 and 27,856

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697 : 27,856 = 27,856 : x
2. Step 2: Convert to fraction form
   12,697/27,856 = 27,856/x
3. Step 3: Cross multiply
   12,697x = 27,856 × 27,856
4. Step 4: Simplify right side
   12,697x = 775,956,736
5. Step 5: Solve for x
   x = 775,956,736/12,697
6. Step 6: Final answer
   x = 61,113.39