Finding the Third Proportional to 12,722 and 25,789

Step by Step Solution

1. Step 1: Write the proportion equation
   12,722 : 25,789 = 25,789 : x
2. Step 2: Convert to fraction form
   12,722/25,789 = 25,789/x
3. Step 3: Cross multiply
   12,722x = 25,789 × 25,789
4. Step 4: Simplify right side
   12,722x = 665,072,521
5. Step 5: Solve for x
   x = 665,072,521/12,722
6. Step 6: Final answer
   x = 52,277.36