Finding the Third Proportional to 89,870 and 140,968

Step by Step Solution

1. Step 1: Write the proportion equation
   89,870 : 140,968 = 140,968 : x
2. Step 2: Convert to fraction form
   89,870/140,968 = 140,968/x
3. Step 3: Cross multiply
   89,870x = 140,968 × 140,968
4. Step 4: Simplify right side
   89,870x = 19,871,977,024
5. Step 5: Solve for x
   x = 19,871,977,024/89,870
6. Step 6: Final answer
   x = 221,119.14