Finding the Third Proportional to 303,480 and 663,012

Step by Step Solution

1. Step 1: Write the proportion equation
   303,480 : 663,012 = 663,012 : x
2. Step 2: Convert to fraction form
   303,480/663,012 = 663,012/x
3. Step 3: Cross multiply
   303,480x = 663,012 × 663,012
4. Step 4: Simplify right side
   303,480x = 439,584,912,144
5. Step 5: Solve for x
   x = 439,584,912,144/303,480
6. Step 6: Final answer
   x = 1,448,480.66