Finding the Third Proportional to 262,212 and 572,040

Step by Step Solution

1. Step 1: Write the proportion equation
   262,212 : 572,040 = 572,040 : x
2. Step 2: Convert to fraction form
   262,212/572,040 = 572,040/x
3. Step 3: Cross multiply
   262,212x = 572,040 × 572,040
4. Step 4: Simplify right side
   262,212x = 327,229,761,600
5. Step 5: Solve for x
   x = 327,229,761,600/262,212
6. Step 6: Final answer
   x = 1,247,958.76