Finding the Third Proportional to 221,199.75 and 333,612

Step by Step Solution

1. Step 1: Write the proportion equation
   221,199.75 : 333,612 = 333,612 : x
2. Step 2: Convert to fraction form
   221,199.75/333,612 = 333,612/x
3. Step 3: Cross multiply
   221,199.75x = 333,612 × 333,612
4. Step 4: Simplify right side
   221,199.75x = 111,296,966,544
5. Step 5: Solve for x
   x = 111,296,966,544/221,199.75
6. Step 6: Final answer
   x = 503,151.41