Finding the Third Proportional to 150,548.50 and 331,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,548.50 : 331,039.50 = 331,039.50 : x
2. Step 2: Convert to fraction form
   150,548.50/331,039.50 = 331,039.50/x
3. Step 3: Cross multiply
   150,548.50x = 331,039.50 × 331,039.50
4. Step 4: Simplify right side
   150,548.50x = 109,587,150,560.25
5. Step 5: Solve for x
   x = 109,587,150,560.25/150,548.50
6. Step 6: Final answer
   x = 727,919.25