Finding the Third Proportional to 850,338 and 1,866,546

Step by Step Solution

1. Step 1: Write the proportion equation
   850,338 : 1,866,546 = 1,866,546 : x
2. Step 2: Convert to fraction form
   850,338/1,866,546 = 1,866,546/x
3. Step 3: Cross multiply
   850,338x = 1,866,546 × 1,866,546
4. Step 4: Simplify right side
   850,338x = 3,483,993,970,116
5. Step 5: Solve for x
   x = 3,483,993,970,116/850,338
6. Step 6: Final answer
   x = 4,097,187.20