Finding the Third Proportional to 221,036 and 333,396

Step by Step Solution

1. Step 1: Write the proportion equation
   221,036 : 333,396 = 333,396 : x
2. Step 2: Convert to fraction form
   221,036/333,396 = 333,396/x
3. Step 3: Cross multiply
   221,036x = 333,396 × 333,396
4. Step 4: Simplify right side
   221,036x = 111,152,892,816
5. Step 5: Solve for x
   x = 111,152,892,816/221,036
6. Step 6: Final answer
   x = 502,872.35