Finding the Third Proportional to 155,521.50 and 333,699

Step by Step Solution

1. Step 1: Write the proportion equation
   155,521.50 : 333,699 = 333,699 : x
2. Step 2: Convert to fraction form
   155,521.50/333,699 = 333,699/x
3. Step 3: Cross multiply
   155,521.50x = 333,699 × 333,699
4. Step 4: Simplify right side
   155,521.50x = 111,355,022,601
5. Step 5: Solve for x
   x = 111,355,022,601/155,521.50
6. Step 6: Final answer
   x = 716,010.47