Finding the Third Proportional to 1,077,869 and 1,690,856

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,869 : 1,690,856 = 1,690,856 : x
2. Step 2: Convert to fraction form
   1,077,869/1,690,856 = 1,690,856/x
3. Step 3: Cross multiply
   1,077,869x = 1,690,856 × 1,690,856
4. Step 4: Simplify right side
   1,077,869x = 2,858,994,012,736
5. Step 5: Solve for x
   x = 2,858,994,012,736/1,077,869
6. Step 6: Final answer
   x = 2,652,450.36