Finding the Third Proportional to 1,400,994 and 2,218,779

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400,994 : 2,218,779 = 2,218,779 : x
2. Step 2: Convert to fraction form
   1,400,994/2,218,779 = 2,218,779/x
3. Step 3: Cross multiply
   1,400,994x = 2,218,779 × 2,218,779
4. Step 4: Simplify right side
   1,400,994x = 4,922,980,250,841
5. Step 5: Solve for x
   x = 4,922,980,250,841/1,400,994
6. Step 6: Final answer
   x = 3,513,919.58