Finding the Third Proportional to 1,200,338 and 1,858,018

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,338 : 1,858,018 = 1,858,018 : x
2. Step 2: Convert to fraction form
   1,200,338/1,858,018 = 1,858,018/x
3. Step 3: Cross multiply
   1,200,338x = 1,858,018 × 1,858,018
4. Step 4: Simplify right side
   1,200,338x = 3,452,230,888,324
5. Step 5: Solve for x
   x = 3,452,230,888,324/1,200,338
6. Step 6: Final answer
   x = 2,876,048.99