Finding the Third Proportional to 582,064 and 1,257,440

Step by Step Solution

1. Step 1: Write the proportion equation
   582,064 : 1,257,440 = 1,257,440 : x
2. Step 2: Convert to fraction form
   582,064/1,257,440 = 1,257,440/x
3. Step 3: Cross multiply
   582,064x = 1,257,440 × 1,257,440
4. Step 4: Simplify right side
   582,064x = 1,581,155,353,600
5. Step 5: Solve for x
   x = 1,581,155,353,600/582,064
6. Step 6: Final answer
   x = 2,716,463.06