Finding the Third Proportional to 248,435 and 351,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,435 : 351,196.50 = 351,196.50 : x
2. Step 2: Convert to fraction form
   248,435/351,196.50 = 351,196.50/x
3. Step 3: Cross multiply
   248,435x = 351,196.50 × 351,196.50
4. Step 4: Simplify right side
   248,435x = 123,338,981,612.25
5. Step 5: Solve for x
   x = 123,338,981,612.25/248,435
6. Step 6: Final answer
   x = 496,463.79