Finding the Third Proportional to 12,290 and 26,404

Step by Step Solution

1. Step 1: Write the proportion equation
   12,290 : 26,404 = 26,404 : x
2. Step 2: Convert to fraction form
   12,290/26,404 = 26,404/x
3. Step 3: Cross multiply
   12,290x = 26,404 × 26,404
4. Step 4: Simplify right side
   12,290x = 697,171,216
5. Step 5: Solve for x
   x = 697,171,216/12,290
6. Step 6: Final answer
   x = 56,726.71