Finding the Third Proportional to 143,858 and 308,524

Step by Step Solution

1. Step 1: Write the proportion equation
   143,858 : 308,524 = 308,524 : x
2. Step 2: Convert to fraction form
   143,858/308,524 = 308,524/x
3. Step 3: Cross multiply
   143,858x = 308,524 × 308,524
4. Step 4: Simplify right side
   143,858x = 95,187,058,576
5. Step 5: Solve for x
   x = 95,187,058,576/143,858
6. Step 6: Final answer
   x = 661,673.72