Finding the Third Proportional to 143,302.50 and 303,673.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,302.50 : 303,673.50 = 303,673.50 : x
2. Step 2: Convert to fraction form
   143,302.50/303,673.50 = 303,673.50/x
3. Step 3: Cross multiply
   143,302.50x = 303,673.50 × 303,673.50
4. Step 4: Simplify right side
   143,302.50x = 92,217,594,602.25
5. Step 5: Solve for x
   x = 92,217,594,602.25/143,302.50
6. Step 6: Final answer
   x = 643,517.00