Finding the Third Proportional to 1,077,689 and 1,690,568

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,689 : 1,690,568 = 1,690,568 : x
2. Step 2: Convert to fraction form
   1,077,689/1,690,568 = 1,690,568/x
3. Step 3: Cross multiply
   1,077,689x = 1,690,568 × 1,690,568
4. Step 4: Simplify right side
   1,077,689x = 2,858,020,162,624
5. Step 5: Solve for x
   x = 2,858,020,162,624/1,077,689
6. Step 6: Final answer
   x = 2,651,989.73