Finding the Third Proportional to 155,397 and 333,450

Step by Step Solution

1. Step 1: Write the proportion equation
   155,397 : 333,450 = 333,450 : x
2. Step 2: Convert to fraction form
   155,397/333,450 = 333,450/x
3. Step 3: Cross multiply
   155,397x = 333,450 × 333,450
4. Step 4: Simplify right side
   155,397x = 111,188,902,500
5. Step 5: Solve for x
   x = 111,188,902,500/155,397
6. Step 6: Final answer
   x = 715,515.12