Finding the Third Proportional to 1,205,799 and 1,866,222

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,799 : 1,866,222 = 1,866,222 : x
2. Step 2: Convert to fraction form
   1,205,799/1,866,222 = 1,866,222/x
3. Step 3: Cross multiply
   1,205,799x = 1,866,222 × 1,866,222
4. Step 4: Simplify right side
   1,205,799x = 3,482,784,553,284
5. Step 5: Solve for x
   x = 3,482,784,553,284/1,205,799
6. Step 6: Final answer
   x = 2,888,362.45