Finding the Third Proportional to 1,201,641 and 1,855,449

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201,641 : 1,855,449 = 1,855,449 : x
2. Step 2: Convert to fraction form
   1,201,641/1,855,449 = 1,855,449/x
3. Step 3: Cross multiply
   1,201,641x = 1,855,449 × 1,855,449
4. Step 4: Simplify right side
   1,201,641x = 3,442,690,991,601
5. Step 5: Solve for x
   x = 3,442,690,991,601/1,201,641
6. Step 6: Final answer
   x = 2,864,991.28