Finding the Third Proportional to 149,608.50 and 322,995

Step by Step Solution

1. Step 1: Write the proportion equation
   149,608.50 : 322,995 = 322,995 : x
2. Step 2: Convert to fraction form
   149,608.50/322,995 = 322,995/x
3. Step 3: Cross multiply
   149,608.50x = 322,995 × 322,995
4. Step 4: Simplify right side
   149,608.50x = 104,325,770,025
5. Step 5: Solve for x
   x = 104,325,770,025/149,608.50
6. Step 6: Final answer
   x = 697,325.15