Finding the Third Proportional to 221,576 and 480,736

Step by Step Solution

1. Step 1: Write the proportion equation
   221,576 : 480,736 = 480,736 : x
2. Step 2: Convert to fraction form
   221,576/480,736 = 480,736/x
3. Step 3: Cross multiply
   221,576x = 480,736 × 480,736
4. Step 4: Simplify right side
   221,576x = 231,107,101,696
5. Step 5: Solve for x
   x = 231,107,101,696/221,576
6. Step 6: Final answer
   x = 1,043,015.05