Finding the Third Proportional to 225,072 and 480,276

Step by Step Solution

1. Step 1: Write the proportion equation
   225,072 : 480,276 = 480,276 : x
2. Step 2: Convert to fraction form
   225,072/480,276 = 480,276/x
3. Step 3: Cross multiply
   225,072x = 480,276 × 480,276
4. Step 4: Simplify right side
   225,072x = 230,665,036,176
5. Step 5: Solve for x
   x = 230,665,036,176/225,072
6. Step 6: Final answer
   x = 1,024,849.99