Finding the Third Proportional to 159,949.50 and 342,039

Step by Step Solution

1. Step 1: Write the proportion equation
   159,949.50 : 342,039 = 342,039 : x
2. Step 2: Convert to fraction form
   159,949.50/342,039 = 342,039/x
3. Step 3: Cross multiply
   159,949.50x = 342,039 × 342,039
4. Step 4: Simplify right side
   159,949.50x = 116,990,677,521
5. Step 5: Solve for x
   x = 116,990,677,521/159,949.50
6. Step 6: Final answer
   x = 731,422.59