Finding the Third Proportional to 1,866,488 and 3,997,344

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866,488 : 3,997,344 = 3,997,344 : x
2. Step 2: Convert to fraction form
   1,866,488/3,997,344 = 3,997,344/x
3. Step 3: Cross multiply
   1,866,488x = 3,997,344 × 3,997,344
4. Step 4: Simplify right side
   1,866,488x = 15,978,759,054,336
5. Step 5: Solve for x
   x = 15,978,759,054,336/1,866,488
6. Step 6: Final answer
   x = 8,560,868.89