Finding the Third Proportional to 65,886 and 144,891

Step by Step Solution

1. Step 1: Write the proportion equation
   65,886 : 144,891 = 144,891 : x
2. Step 2: Convert to fraction form
   65,886/144,891 = 144,891/x
3. Step 3: Cross multiply
   65,886x = 144,891 × 144,891
4. Step 4: Simplify right side
   65,886x = 20,993,401,881
5. Step 5: Solve for x
   x = 20,993,401,881/65,886
6. Step 6: Final answer
   x = 318,632.21