Finding the Third Proportional to 584,518 and 1,257,812

Step by Step Solution

1. Step 1: Write the proportion equation
   584,518 : 1,257,812 = 1,257,812 : x
2. Step 2: Convert to fraction form
   584,518/1,257,812 = 1,257,812/x
3. Step 3: Cross multiply
   584,518x = 1,257,812 × 1,257,812
4. Step 4: Simplify right side
   584,518x = 1,582,091,027,344
5. Step 5: Solve for x
   x = 1,582,091,027,344/584,518
6. Step 6: Final answer
   x = 2,706,659.21