Finding the Third Proportional to 779,616 and 1,679,544

Step by Step Solution

1. Step 1: Write the proportion equation
   779,616 : 1,679,544 = 1,679,544 : x
2. Step 2: Convert to fraction form
   779,616/1,679,544 = 1,679,544/x
3. Step 3: Cross multiply
   779,616x = 1,679,544 × 1,679,544
4. Step 4: Simplify right side
   779,616x = 2,820,868,047,936
5. Step 5: Solve for x
   x = 2,820,868,047,936/779,616
6. Step 6: Final answer
   x = 3,618,278.80