Finding the Third Proportional to 2,786,308 and 5,690,680

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786,308 : 5,690,680 = 5,690,680 : x
2. Step 2: Convert to fraction form
   2,786,308/5,690,680 = 5,690,680/x
3. Step 3: Cross multiply
   2,786,308x = 5,690,680 × 5,690,680
4. Step 4: Simplify right side
   2,786,308x = 32,383,838,862,400
5. Step 5: Solve for x
   x = 32,383,838,862,400/2,786,308
6. Step 6: Final answer
   x = 11,622,490.72