Finding the Third Proportional to 580,820 and 1,258,155

Step by Step Solution

1. Step 1: Write the proportion equation
   580,820 : 1,258,155 = 1,258,155 : x
2. Step 2: Convert to fraction form
   580,820/1,258,155 = 1,258,155/x
3. Step 3: Cross multiply
   580,820x = 1,258,155 × 1,258,155
4. Step 4: Simplify right side
   580,820x = 1,582,954,004,025
5. Step 5: Solve for x
   x = 1,582,954,004,025/580,820
6. Step 6: Final answer
   x = 2,725,377.92