Finding the Third Proportional to 1,399,868 and 2,998,012

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,868 : 2,998,012 = 2,998,012 : x
2. Step 2: Convert to fraction form
   1,399,868/2,998,012 = 2,998,012/x
3. Step 3: Cross multiply
   1,399,868x = 2,998,012 × 2,998,012
4. Step 4: Simplify right side
   1,399,868x = 8,988,075,952,144
5. Step 5: Solve for x
   x = 8,988,075,952,144/1,399,868
6. Step 6: Final answer
   x = 6,420,659.63