Finding the Third Proportional to 221,312 and 479,884

Step by Step Solution

1. Step 1: Write the proportion equation
   221,312 : 479,884 = 479,884 : x
2. Step 2: Convert to fraction form
   221,312/479,884 = 479,884/x
3. Step 3: Cross multiply
   221,312x = 479,884 × 479,884
4. Step 4: Simplify right side
   221,312x = 230,288,653,456
5. Step 5: Solve for x
   x = 230,288,653,456/221,312
6. Step 6: Final answer
   x = 1,040,561.08