Finding the Third Proportional to 819,620 and 1,679,704

Step by Step Solution

1. Step 1: Write the proportion equation
   819,620 : 1,679,704 = 1,679,704 : x
2. Step 2: Convert to fraction form
   819,620/1,679,704 = 1,679,704/x
3. Step 3: Cross multiply
   819,620x = 1,679,704 × 1,679,704
4. Step 4: Simplify right side
   819,620x = 2,821,405,527,616
5. Step 5: Solve for x
   x = 2,821,405,527,616/819,620
6. Step 6: Final answer
   x = 3,442,333.68