Finding the Third Proportional to 582,440 and 1,279,084

Step by Step Solution

1. Step 1: Write the proportion equation
   582,440 : 1,279,084 = 1,279,084 : x
2. Step 2: Convert to fraction form
   582,440/1,279,084 = 1,279,084/x
3. Step 3: Cross multiply
   582,440x = 1,279,084 × 1,279,084
4. Step 4: Simplify right side
   582,440x = 1,636,055,879,056
5. Step 5: Solve for x
   x = 1,636,055,879,056/582,440
6. Step 6: Final answer
   x = 2,808,968.96