Finding the Third Proportional to 155,533 and 333,721

Step by Step Solution

1. Step 1: Write the proportion equation
   155,533 : 333,721 = 333,721 : x
2. Step 2: Convert to fraction form
   155,533/333,721 = 333,721/x
3. Step 3: Cross multiply
   155,533x = 333,721 × 333,721
4. Step 4: Simplify right side
   155,533x = 111,369,705,841
5. Step 5: Solve for x
   x = 111,369,705,841/155,533
6. Step 6: Final answer
   x = 716,051.94