Finding the Third Proportional to 225,720 and 480,672

Step by Step Solution

1. Step 1: Write the proportion equation
   225,720 : 480,672 = 480,672 : x
2. Step 2: Convert to fraction form
   225,720/480,672 = 480,672/x
3. Step 3: Cross multiply
   225,720x = 480,672 × 480,672
4. Step 4: Simplify right side
   225,720x = 231,045,571,584
5. Step 5: Solve for x
   x = 231,045,571,584/225,720
6. Step 6: Final answer
   x = 1,023,593.71