Finding the Third Proportional to 300,308.50 and 404,495

Step by Step Solution

1. Step 1: Write the proportion equation
   300,308.50 : 404,495 = 404,495 : x
2. Step 2: Convert to fraction form
   300,308.50/404,495 = 404,495/x
3. Step 3: Cross multiply
   300,308.50x = 404,495 × 404,495
4. Step 4: Simplify right side
   300,308.50x = 163,616,205,025
5. Step 5: Solve for x
   x = 163,616,205,025/300,308.50
6. Step 6: Final answer
   x = 544,827.09