Finding the Third Proportional to 1,399,862 and 2,997,996

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,862 : 2,997,996 = 2,997,996 : x
2. Step 2: Convert to fraction form
   1,399,862/2,997,996 = 2,997,996/x
3. Step 3: Cross multiply
   1,399,862x = 2,997,996 × 2,997,996
4. Step 4: Simplify right side
   1,399,862x = 8,987,980,016,016
5. Step 5: Solve for x
   x = 8,987,980,016,016/1,399,862
6. Step 6: Final answer
   x = 6,420,618.62