Finding the Third Proportional to 1,077,864 and 1,690,853

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,864 : 1,690,853 = 1,690,853 : x
2. Step 2: Convert to fraction form
   1,077,864/1,690,853 = 1,690,853/x
3. Step 3: Cross multiply
   1,077,864x = 1,690,853 × 1,690,853
4. Step 4: Simplify right side
   1,077,864x = 2,858,983,867,609
5. Step 5: Solve for x
   x = 2,858,983,867,609/1,077,864
6. Step 6: Final answer
   x = 2,652,453.25