Finding the Third Proportional to 842,540 and 1,855,864

Step by Step Solution

1. Step 1: Write the proportion equation
   842,540 : 1,855,864 = 1,855,864 : x
2. Step 2: Convert to fraction form
   842,540/1,855,864 = 1,855,864/x
3. Step 3: Cross multiply
   842,540x = 1,855,864 × 1,855,864
4. Step 4: Simplify right side
   842,540x = 3,444,231,186,496
5. Step 5: Solve for x
   x = 3,444,231,186,496/842,540
6. Step 6: Final answer
   x = 4,087,914.15