Finding the Third Proportional to 142,450.50 and 303,969

Step by Step Solution

1. Step 1: Write the proportion equation
   142,450.50 : 303,969 = 303,969 : x
2. Step 2: Convert to fraction form
   142,450.50/303,969 = 303,969/x
3. Step 3: Cross multiply
   142,450.50x = 303,969 × 303,969
4. Step 4: Simplify right side
   142,450.50x = 92,397,152,961
5. Step 5: Solve for x
   x = 92,397,152,961/142,450.50
6. Step 6: Final answer
   x = 648,626.39