Finding the Third Proportional to 1,678,437 and 3,585,870

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,437 : 3,585,870 = 3,585,870 : x
2. Step 2: Convert to fraction form
   1,678,437/3,585,870 = 3,585,870/x
3. Step 3: Cross multiply
   1,678,437x = 3,585,870 × 3,585,870
4. Step 4: Simplify right side
   1,678,437x = 12,858,463,656,900
5. Step 5: Solve for x
   x = 12,858,463,656,900/1,678,437
6. Step 6: Final answer
   x = 7,660,974.86