Finding the Third Proportional to 221,113 and 333,519

Step by Step Solution

1. Step 1: Write the proportion equation
   221,113 : 333,519 = 333,519 : x
2. Step 2: Convert to fraction form
   221,113/333,519 = 333,519/x
3. Step 3: Cross multiply
   221,113x = 333,519 × 333,519
4. Step 4: Simplify right side
   221,113x = 111,234,923,361
5. Step 5: Solve for x
   x = 111,234,923,361/221,113
6. Step 6: Final answer
   x = 503,068.22