Finding the Third Proportional to 143,086 and 282,570

Step by Step Solution

1. Step 1: Write the proportion equation
   143,086 : 282,570 = 282,570 : x
2. Step 2: Convert to fraction form
   143,086/282,570 = 282,570/x
3. Step 3: Cross multiply
   143,086x = 282,570 × 282,570
4. Step 4: Simplify right side
   143,086x = 79,845,804,900
5. Step 5: Solve for x
   x = 79,845,804,900/143,086
6. Step 6: Final answer
   x = 558,026.68