Finding the Third Proportional to 819,618 and 1,679,700

Step by Step Solution

1. Step 1: Write the proportion equation
   819,618 : 1,679,700 = 1,679,700 : x
2. Step 2: Convert to fraction form
   819,618/1,679,700 = 1,679,700/x
3. Step 3: Cross multiply
   819,618x = 1,679,700 × 1,679,700
4. Step 4: Simplify right side
   819,618x = 2,821,392,090,000
5. Step 5: Solve for x
   x = 2,821,392,090,000/819,618
6. Step 6: Final answer
   x = 3,442,325.68