Finding the Third Proportional to 155,542.50 and 333,189

Step by Step Solution

1. Step 1: Write the proportion equation
   155,542.50 : 333,189 = 333,189 : x
2. Step 2: Convert to fraction form
   155,542.50/333,189 = 333,189/x
3. Step 3: Cross multiply
   155,542.50x = 333,189 × 333,189
4. Step 4: Simplify right side
   155,542.50x = 111,014,909,721
5. Step 5: Solve for x
   x = 111,014,909,721/155,542.50
6. Step 6: Final answer
   x = 713,727.18