Finding the Third Proportional to 143,190.50 and 282,766

Step by Step Solution

1. Step 1: Write the proportion equation
   143,190.50 : 282,766 = 282,766 : x
2. Step 2: Convert to fraction form
   143,190.50/282,766 = 282,766/x
3. Step 3: Cross multiply
   143,190.50x = 282,766 × 282,766
4. Step 4: Simplify right side
   143,190.50x = 79,956,610,756
5. Step 5: Solve for x
   x = 79,956,610,756/143,190.50
6. Step 6: Final answer
   x = 558,393.26