Finding the Third Proportional to 142,438.50 and 303,945.33

Step by Step Solution

1. Step 1: Write the proportion equation
   142,438.50 : 303,945.33 = 303,945.33 : x
2. Step 2: Convert to fraction form
   142,438.50/303,945.33 = 303,945.33/x
3. Step 3: Cross multiply
   142,438.50x = 303,945.33 × 303,945.33
4. Step 4: Simplify right side
   142,438.50x = 92,382,762,489.01
5. Step 5: Solve for x
   x = 92,382,762,489.01/142,438.50
6. Step 6: Final answer
   x = 648,580.00