Finding the Third Proportional to 143,249.50 and 303,574

Step by Step Solution

1. Step 1: Write the proportion equation
   143,249.50 : 303,574 = 303,574 : x
2. Step 2: Convert to fraction form
   143,249.50/303,574 = 303,574/x
3. Step 3: Cross multiply
   143,249.50x = 303,574 × 303,574
4. Step 4: Simplify right side
   143,249.50x = 92,157,173,476
5. Step 5: Solve for x
   x = 92,157,173,476/143,249.50
6. Step 6: Final answer
   x = 643,333.30