Finding the Third Proportional to 582,257 and 1,258,008

Step by Step Solution

1. Step 1: Write the proportion equation
   582,257 : 1,258,008 = 1,258,008 : x
2. Step 2: Convert to fraction form
   582,257/1,258,008 = 1,258,008/x
3. Step 3: Cross multiply
   582,257x = 1,258,008 × 1,258,008
4. Step 4: Simplify right side
   582,257x = 1,582,584,128,064
5. Step 5: Solve for x
   x = 1,582,584,128,064/582,257
6. Step 6: Final answer
   x = 2,718,016.49