Finding the Third Proportional to 839,618 and 1,811,908

Step by Step Solution

1. Step 1: Write the proportion equation
   839,618 : 1,811,908 = 1,811,908 : x
2. Step 2: Convert to fraction form
   839,618/1,811,908 = 1,811,908/x
3. Step 3: Cross multiply
   839,618x = 1,811,908 × 1,811,908
4. Step 4: Simplify right side
   839,618x = 3,283,010,600,464
5. Step 5: Solve for x
   x = 3,283,010,600,464/839,618
6. Step 6: Final answer
   x = 3,910,124.13