Finding the Third Proportional to 221,592 and 480,768

Step by Step Solution

1. Step 1: Write the proportion equation
   221,592 : 480,768 = 480,768 : x
2. Step 2: Convert to fraction form
   221,592/480,768 = 480,768/x
3. Step 3: Cross multiply
   221,592x = 480,768 × 480,768
4. Step 4: Simplify right side
   221,592x = 231,137,869,824
5. Step 5: Solve for x
   x = 231,137,869,824/221,592
6. Step 6: Final answer
   x = 1,043,078.59