Finding the Third Proportional to 143,353.50 and 303,798

Step by Step Solution

1. Step 1: Write the proportion equation
   143,353.50 : 303,798 = 303,798 : x
2. Step 2: Convert to fraction form
   143,353.50/303,798 = 303,798/x
3. Step 3: Cross multiply
   143,353.50x = 303,798 × 303,798
4. Step 4: Simplify right side
   143,353.50x = 92,293,224,804
5. Step 5: Solve for x
   x = 92,293,224,804/143,353.50
6. Step 6: Final answer
   x = 643,815.64