Finding the Third Proportional to 2,789,987 and 4,205,501

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789,987 : 4,205,501 = 4,205,501 : x
2. Step 2: Convert to fraction form
   2,789,987/4,205,501 = 4,205,501/x
3. Step 3: Cross multiply
   2,789,987x = 4,205,501 × 4,205,501
4. Step 4: Simplify right side
   2,789,987x = 17,686,238,661,001
5. Step 5: Solve for x
   x = 17,686,238,661,001/2,789,987
6. Step 6: Final answer
   x = 6,339,183.18