Finding the Third Proportional to 150,814 and 331,434

Step by Step Solution

1. Step 1: Write the proportion equation
   150,814 : 331,434 = 331,434 : x
2. Step 2: Convert to fraction form
   150,814/331,434 = 331,434/x
3. Step 3: Cross multiply
   150,814x = 331,434 × 331,434
4. Step 4: Simplify right side
   150,814x = 109,848,496,356
5. Step 5: Solve for x
   x = 109,848,496,356/150,814
6. Step 6: Final answer
   x = 728,370.68