Finding the Third Proportional to 199,408.50 and 306,504

Step by Step Solution

1. Step 1: Write the proportion equation
   199,408.50 : 306,504 = 306,504 : x
2. Step 2: Convert to fraction form
   199,408.50/306,504 = 306,504/x
3. Step 3: Cross multiply
   199,408.50x = 306,504 × 306,504
4. Step 4: Simplify right side
   199,408.50x = 93,944,702,016
5. Step 5: Solve for x
   x = 93,944,702,016/199,408.50
6. Step 6: Final answer
   x = 471,116.84