Finding the Third Proportional to 142,605.50 and 303,563

Step by Step Solution

1. Step 1: Write the proportion equation
   142,605.50 : 303,563 = 303,563 : x
2. Step 2: Convert to fraction form
   142,605.50/303,563 = 303,563/x
3. Step 3: Cross multiply
   142,605.50x = 303,563 × 303,563
4. Step 4: Simplify right side
   142,605.50x = 92,150,494,969
5. Step 5: Solve for x
   x = 92,150,494,969/142,605.50
6. Step 6: Final answer
   x = 646,191.73