Finding the Third Proportional to 855,042 and 1,806,636

Step by Step Solution

1. Step 1: Write the proportion equation
   855,042 : 1,806,636 = 1,806,636 : x
2. Step 2: Convert to fraction form
   855,042/1,806,636 = 1,806,636/x
3. Step 3: Cross multiply
   855,042x = 1,806,636 × 1,806,636
4. Step 4: Simplify right side
   855,042x = 3,263,933,636,496
5. Step 5: Solve for x
   x = 3,263,933,636,496/855,042
6. Step 6: Final answer
   x = 3,817,278.73