Finding the Third Proportional to 89,858 and 140,949

Step by Step Solution

1. Step 1: Write the proportion equation
   89,858 : 140,949 = 140,949 : x
2. Step 2: Convert to fraction form
   89,858/140,949 = 140,949/x
3. Step 3: Cross multiply
   89,858x = 140,949 × 140,949
4. Step 4: Simplify right side
   89,858x = 19,866,620,601
5. Step 5: Solve for x
   x = 19,866,620,601/89,858
6. Step 6: Final answer
   x = 221,089.06