Finding the Third Proportional to 1,287,738 and 2,774,744

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,738 : 2,774,744 = 2,774,744 : x
2. Step 2: Convert to fraction form
   1,287,738/2,774,744 = 2,774,744/x
3. Step 3: Cross multiply
   1,287,738x = 2,774,744 × 2,774,744
4. Step 4: Simplify right side
   1,287,738x = 7,699,204,265,536
5. Step 5: Solve for x
   x = 7,699,204,265,536/1,287,738
6. Step 6: Final answer
   x = 5,978,859.26