Finding the Third Proportional to 1,240,574 and 1,967,631

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,574 : 1,967,631 = 1,967,631 : x
2. Step 2: Convert to fraction form
   1,240,574/1,967,631 = 1,967,631/x
3. Step 3: Cross multiply
   1,240,574x = 1,967,631 × 1,967,631
4. Step 4: Simplify right side
   1,240,574x = 3,871,571,752,161
5. Step 5: Solve for x
   x = 3,871,571,752,161/1,240,574
6. Step 6: Final answer
   x = 3,120,790.66