Finding the Third Proportional to 611,344 and 1,340,786

Step by Step Solution

1. Step 1: Write the proportion equation
   611,344 : 1,340,786 = 1,340,786 : x
2. Step 2: Convert to fraction form
   611,344/1,340,786 = 1,340,786/x
3. Step 3: Cross multiply
   611,344x = 1,340,786 × 1,340,786
4. Step 4: Simplify right side
   611,344x = 1,797,707,097,796
5. Step 5: Solve for x
   x = 1,797,707,097,796/611,344
6. Step 6: Final answer
   x = 2,940,581.89