Finding the Third Proportional to 618,840 and 1,338,714

Step by Step Solution

1. Step 1: Write the proportion equation
   618,840 : 1,338,714 = 1,338,714 : x
2. Step 2: Convert to fraction form
   618,840/1,338,714 = 1,338,714/x
3. Step 3: Cross multiply
   618,840x = 1,338,714 × 1,338,714
4. Step 4: Simplify right side
   618,840x = 1,792,155,173,796
5. Step 5: Solve for x
   x = 1,792,155,173,796/618,840
6. Step 6: Final answer
   x = 2,895,991.17