Finding the Third Proportional to 1,399,842 and 2,997,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,842 : 2,997,960 = 2,997,960 : x
2. Step 2: Convert to fraction form
   1,399,842/2,997,960 = 2,997,960/x
3. Step 3: Cross multiply
   1,399,842x = 2,997,960 × 2,997,960
4. Step 4: Simplify right side
   1,399,842x = 8,987,764,161,600
5. Step 5: Solve for x
   x = 8,987,764,161,600/1,399,842
6. Step 6: Final answer
   x = 6,420,556.15