Finding the Third Proportional to 319,950 and 479,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   319,950 : 479,434.50 = 479,434.50 : x
2. Step 2: Convert to fraction form
   319,950/479,434.50 = 479,434.50/x
3. Step 3: Cross multiply
   319,950x = 479,434.50 × 479,434.50
4. Step 4: Simplify right side
   319,950x = 229,857,439,790.25
5. Step 5: Solve for x
   x = 229,857,439,790.25/319,950
6. Step 6: Final answer
   x = 718,416.75