Finding the Third Proportional to 12,723 and 25,790

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723 : 25,790 = 25,790 : x
2. Step 2: Convert to fraction form
   12,723/25,790 = 25,790/x
3. Step 3: Cross multiply
   12,723x = 25,790 × 25,790
4. Step 4: Simplify right side
   12,723x = 665,124,100
5. Step 5: Solve for x
   x = 665,124,100/12,723
6. Step 6: Final answer
   x = 52,277.30