Finding the Third Proportional to 779,118 and 1,040,373

Step by Step Solution

1. Step 1: Write the proportion equation
   779,118 : 1,040,373 = 1,040,373 : x
2. Step 2: Convert to fraction form
   779,118/1,040,373 = 1,040,373/x
3. Step 3: Cross multiply
   779,118x = 1,040,373 × 1,040,373
4. Step 4: Simplify right side
   779,118x = 1,082,375,979,129
5. Step 5: Solve for x
   x = 1,082,375,979,129/779,118
6. Step 6: Final answer
   x = 1,389,232.41