Finding the Third Proportional to 78,885 and 168,981

Step by Step Solution

1. Step 1: Write the proportion equation
   78,885 : 168,981 = 168,981 : x
2. Step 2: Convert to fraction form
   78,885/168,981 = 168,981/x
3. Step 3: Cross multiply
   78,885x = 168,981 × 168,981
4. Step 4: Simplify right side
   78,885x = 28,554,578,361
5. Step 5: Solve for x
   x = 28,554,578,361/78,885
6. Step 6: Final answer
   x = 361,977.29