Finding the Third Proportional to 2,708,790 and 5,641,779

Step by Step Solution

1. Step 1: Write the proportion equation
   2,708,790 : 5,641,779 = 5,641,779 : x
2. Step 2: Convert to fraction form
   2,708,790/5,641,779 = 5,641,779/x
3. Step 3: Cross multiply
   2,708,790x = 5,641,779 × 5,641,779
4. Step 4: Simplify right side
   2,708,790x = 31,829,670,284,841
5. Step 5: Solve for x
   x = 31,829,670,284,841/2,708,790
6. Step 6: Final answer
   x = 11,750,512.33