Finding the Third Proportional to 221,108 and 333,512

Step by Step Solution

1. Step 1: Write the proportion equation
   221,108 : 333,512 = 333,512 : x
2. Step 2: Convert to fraction form
   221,108/333,512 = 333,512/x
3. Step 3: Cross multiply
   221,108x = 333,512 × 333,512
4. Step 4: Simplify right side
   221,108x = 111,230,254,144
5. Step 5: Solve for x
   x = 111,230,254,144/221,108
6. Step 6: Final answer
   x = 503,058.48