Finding the Third Proportional to 2,767,990 and 5,990,872

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767,990 : 5,990,872 = 5,990,872 : x
2. Step 2: Convert to fraction form
   2,767,990/5,990,872 = 5,990,872/x
3. Step 3: Cross multiply
   2,767,990x = 5,990,872 × 5,990,872
4. Step 4: Simplify right side
   2,767,990x = 35,890,547,320,384
5. Step 5: Solve for x
   x = 35,890,547,320,384/2,767,990
6. Step 6: Final answer
   x = 12,966,285.04