Finding the Third Proportional to 143,338.50 and 303,741

Step by Step Solution

1. Step 1: Write the proportion equation
   143,338.50 : 303,741 = 303,741 : x
2. Step 2: Convert to fraction form
   143,338.50/303,741 = 303,741/x
3. Step 3: Cross multiply
   143,338.50x = 303,741 × 303,741
4. Step 4: Simplify right side
   143,338.50x = 92,258,595,081
5. Step 5: Solve for x
   x = 92,258,595,081/143,338.50
6. Step 6: Final answer
   x = 643,641.42