Finding the Third Proportional to 1,205,816 and 1,866,252

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,816 : 1,866,252 = 1,866,252 : x
2. Step 2: Convert to fraction form
   1,205,816/1,866,252 = 1,866,252/x
3. Step 3: Cross multiply
   1,205,816x = 1,866,252 × 1,866,252
4. Step 4: Simplify right side
   1,205,816x = 3,482,896,527,504
5. Step 5: Solve for x
   x = 3,482,896,527,504/1,205,816
6. Step 6: Final answer
   x = 2,888,414.59