Finding the Third Proportional to 2,786,288 and 5,690,648

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786,288 : 5,690,648 = 5,690,648 : x
2. Step 2: Convert to fraction form
   2,786,288/5,690,648 = 5,690,648/x
3. Step 3: Cross multiply
   2,786,288x = 5,690,648 × 5,690,648
4. Step 4: Simplify right side
   2,786,288x = 32,383,474,659,904
5. Step 5: Solve for x
   x = 32,383,474,659,904/2,786,288
6. Step 6: Final answer
   x = 11,622,443.43