Finding the Third Proportional to 579,279 and 1,261,540

Step by Step Solution

1. Step 1: Write the proportion equation
   579,279 : 1,261,540 = 1,261,540 : x
2. Step 2: Convert to fraction form
   579,279/1,261,540 = 1,261,540/x
3. Step 3: Cross multiply
   579,279x = 1,261,540 × 1,261,540
4. Step 4: Simplify right side
   579,279x = 1,591,483,171,600
5. Step 5: Solve for x
   x = 1,591,483,171,600/579,279
6. Step 6: Final answer
   x = 2,747,351.75