Finding the Third Proportional to 199,395.50 and 306,484

Step by Step Solution

1. Step 1: Write the proportion equation
   199,395.50 : 306,484 = 306,484 : x
2. Step 2: Convert to fraction form
   199,395.50/306,484 = 306,484/x
3. Step 3: Cross multiply
   199,395.50x = 306,484 × 306,484
4. Step 4: Simplify right side
   199,395.50x = 93,932,442,256
5. Step 5: Solve for x
   x = 93,932,442,256/199,395.50
6. Step 6: Final answer
   x = 471,086.07