Finding the Third Proportional to 89,876 and 140,976

Step by Step Solution

1. Step 1: Write the proportion equation
   89,876 : 140,976 = 140,976 : x
2. Step 2: Convert to fraction form
   89,876/140,976 = 140,976/x
3. Step 3: Cross multiply
   89,876x = 140,976 × 140,976
4. Step 4: Simplify right side
   89,876x = 19,874,232,576
5. Step 5: Solve for x
   x = 19,874,232,576/89,876
6. Step 6: Final answer
   x = 221,129.47