Finding the Third Proportional to 220,972 and 481,320

Step by Step Solution

1. Step 1: Write the proportion equation
   220,972 : 481,320 = 481,320 : x
2. Step 2: Convert to fraction form
   220,972/481,320 = 481,320/x
3. Step 3: Cross multiply
   220,972x = 481,320 × 481,320
4. Step 4: Simplify right side
   220,972x = 231,668,942,400
5. Step 5: Solve for x
   x = 231,668,942,400/220,972
6. Step 6: Final answer
   x = 1,048,408.59