Finding the Third Proportional to 143,201.50 and 282,788

Step by Step Solution

1. Step 1: Write the proportion equation
   143,201.50 : 282,788 = 282,788 : x
2. Step 2: Convert to fraction form
   143,201.50/282,788 = 282,788/x
3. Step 3: Cross multiply
   143,201.50x = 282,788 × 282,788
4. Step 4: Simplify right side
   143,201.50x = 79,969,052,944
5. Step 5: Solve for x
   x = 79,969,052,944/143,201.50
6. Step 6: Final answer
   x = 558,437.26