Finding the Third Proportional to 1,205,872 and 1,866,336

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,872 : 1,866,336 = 1,866,336 : x
2. Step 2: Convert to fraction form
   1,205,872/1,866,336 = 1,866,336/x
3. Step 3: Cross multiply
   1,205,872x = 1,866,336 × 1,866,336
4. Step 4: Simplify right side
   1,205,872x = 3,483,210,064,896
5. Step 5: Solve for x
   x = 3,483,210,064,896/1,205,872
6. Step 6: Final answer
   x = 2,888,540.46