Finding the Third Proportional to 1,420,809 and 2,166,676

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,809 : 2,166,676 = 2,166,676 : x
2. Step 2: Convert to fraction form
   1,420,809/2,166,676 = 2,166,676/x
3. Step 3: Cross multiply
   1,420,809x = 2,166,676 × 2,166,676
4. Step 4: Simplify right side
   1,420,809x = 4,694,484,888,976
5. Step 5: Solve for x
   x = 4,694,484,888,976/1,420,809
6. Step 6: Final answer
   x = 3,304,092.87