Finding the Third Proportional to 356,454 and 484,257.75

Step by Step Solution

1. Step 1: Write the proportion equation
   356,454 : 484,257.75 = 484,257.75 : x
2. Step 2: Convert to fraction form
   356,454/484,257.75 = 484,257.75/x
3. Step 3: Cross multiply
   356,454x = 484,257.75 × 484,257.75
4. Step 4: Simplify right side
   356,454x = 234,505,568,435.06
5. Step 5: Solve for x
   x = 234,505,568,435.06/356,454
6. Step 6: Final answer
   x = 657,884.52