Finding the Third Proportional to 262,243.50 and 404,949

Step by Step Solution

1. Step 1: Write the proportion equation
   262,243.50 : 404,949 = 404,949 : x
2. Step 2: Convert to fraction form
   262,243.50/404,949 = 404,949/x
3. Step 3: Cross multiply
   262,243.50x = 404,949 × 404,949
4. Step 4: Simplify right side
   262,243.50x = 163,983,692,601
5. Step 5: Solve for x
   x = 163,983,692,601/262,243.50
6. Step 6: Final answer
   x = 625,310.80