Finding the Third Proportional to 158,928.50 and 336,811

Step by Step Solution

1. Step 1: Write the proportion equation
   158,928.50 : 336,811 = 336,811 : x
2. Step 2: Convert to fraction form
   158,928.50/336,811 = 336,811/x
3. Step 3: Cross multiply
   158,928.50x = 336,811 × 336,811
4. Step 4: Simplify right side
   158,928.50x = 113,441,649,721
5. Step 5: Solve for x
   x = 113,441,649,721/158,928.50
6. Step 6: Final answer
   x = 713,790.48