Finding the Third Proportional to 1,265,826 and 1,690,929

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,826 : 1,690,929 = 1,690,929 : x
2. Step 2: Convert to fraction form
   1,265,826/1,690,929 = 1,690,929/x
3. Step 3: Cross multiply
   1,265,826x = 1,690,929 × 1,690,929
4. Step 4: Simplify right side
   1,265,826x = 2,859,240,883,041
5. Step 5: Solve for x
   x = 2,859,240,883,041/1,265,826
6. Step 6: Final answer
   x = 2,258,794.56