Finding the Third Proportional to 1,204,585 and 1,605,916

Step by Step Solution

1. Step 1: Write the proportion equation
   1,204,585 : 1,605,916 = 1,605,916 : x
2. Step 2: Convert to fraction form
   1,204,585/1,605,916 = 1,605,916/x
3. Step 3: Cross multiply
   1,204,585x = 1,605,916 × 1,605,916
4. Step 4: Simplify right side
   1,204,585x = 2,578,966,199,056
5. Step 5: Solve for x
   x = 2,578,966,199,056/1,204,585
6. Step 6: Final answer
   x = 2,140,958.25