Finding the Third Proportional to 774,690 and 1,661,445

Step by Step Solution

1. Step 1: Write the proportion equation
   774,690 : 1,661,445 = 1,661,445 : x
2. Step 2: Convert to fraction form
   774,690/1,661,445 = 1,661,445/x
3. Step 3: Cross multiply
   774,690x = 1,661,445 × 1,661,445
4. Step 4: Simplify right side
   774,690x = 2,760,399,488,025
5. Step 5: Solve for x
   x = 2,760,399,488,025/774,690
6. Step 6: Final answer
   x = 3,563,231.08