Finding the Third Proportional to 581,570 and 1,280,212

Step by Step Solution

1. Step 1: Write the proportion equation
   581,570 : 1,280,212 = 1,280,212 : x
2. Step 2: Convert to fraction form
   581,570/1,280,212 = 1,280,212/x
3. Step 3: Cross multiply
   581,570x = 1,280,212 × 1,280,212
4. Step 4: Simplify right side
   581,570x = 1,638,942,764,944
5. Step 5: Solve for x
   x = 1,638,942,764,944/581,570
6. Step 6: Final answer
   x = 2,818,134.99