Finding the Third Proportional to 1,109,816 and 1,661,686

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,816 : 1,661,686 = 1,661,686 : x
2. Step 2: Convert to fraction form
   1,109,816/1,661,686 = 1,661,686/x
3. Step 3: Cross multiply
   1,109,816x = 1,661,686 × 1,661,686
4. Step 4: Simplify right side
   1,109,816x = 2,761,200,362,596
5. Step 5: Solve for x
   x = 2,761,200,362,596/1,109,816
6. Step 6: Final answer
   x = 2,487,980.32