Finding the Third Proportional to 1,664,379 and 3,585,869

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664,379 : 3,585,869 = 3,585,869 : x
2. Step 2: Convert to fraction form
   1,664,379/3,585,869 = 3,585,869/x
3. Step 3: Cross multiply
   1,664,379x = 3,585,869 × 3,585,869
4. Step 4: Simplify right side
   1,664,379x = 12,858,456,485,161
5. Step 5: Solve for x
   x = 12,858,456,485,161/1,664,379
6. Step 6: Final answer
   x = 7,725,678.16