Finding the Third Proportional to 158,396.50 and 344,678

Step by Step Solution

1. Step 1: Write the proportion equation
   158,396.50 : 344,678 = 344,678 : x
2. Step 2: Convert to fraction form
   158,396.50/344,678 = 344,678/x
3. Step 3: Cross multiply
   158,396.50x = 344,678 × 344,678
4. Step 4: Simplify right side
   158,396.50x = 118,802,923,684
5. Step 5: Solve for x
   x = 118,802,923,684/158,396.50
6. Step 6: Final answer
   x = 750,035.03