Finding the Third Proportional to 1,221,559 and 2,659,981

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,559 : 2,659,981 = 2,659,981 : x
2. Step 2: Convert to fraction form
   1,221,559/2,659,981 = 2,659,981/x
3. Step 3: Cross multiply
   1,221,559x = 2,659,981 × 2,659,981
4. Step 4: Simplify right side
   1,221,559x = 7,075,498,920,361
5. Step 5: Solve for x
   x = 7,075,498,920,361/1,221,559
6. Step 6: Final answer
   x = 5,792,187.62