Finding the Third Proportional to 582,422 and 1,272,604

Step by Step Solution

1. Step 1: Write the proportion equation
   582,422 : 1,272,604 = 1,272,604 : x
2. Step 2: Convert to fraction form
   582,422/1,272,604 = 1,272,604/x
3. Step 3: Cross multiply
   582,422x = 1,272,604 × 1,272,604
4. Step 4: Simplify right side
   582,422x = 1,619,520,940,816
5. Step 5: Solve for x
   x = 1,619,520,940,816/582,422
6. Step 6: Final answer
   x = 2,780,665.81