Finding the Third Proportional to 221,814 and 480,992

Step by Step Solution

1. Step 1: Write the proportion equation
   221,814 : 480,992 = 480,992 : x
2. Step 2: Convert to fraction form
   221,814/480,992 = 480,992/x
3. Step 3: Cross multiply
   221,814x = 480,992 × 480,992
4. Step 4: Simplify right side
   221,814x = 231,353,304,064
5. Step 5: Solve for x
   x = 231,353,304,064/221,814
6. Step 6: Final answer
   x = 1,043,005.87