Finding the Third Proportional to 779,628 and 1,679,568

Step by Step Solution

1. Step 1: Write the proportion equation
   779,628 : 1,679,568 = 1,679,568 : x
2. Step 2: Convert to fraction form
   779,628/1,679,568 = 1,679,568/x
3. Step 3: Cross multiply
   779,628x = 1,679,568 × 1,679,568
4. Step 4: Simplify right side
   779,628x = 2,820,948,666,624
5. Step 5: Solve for x
   x = 2,820,948,666,624/779,628
6. Step 6: Final answer
   x = 3,618,326.52