Finding the Third Proportional to 109,556 and 168,980

Step by Step Solution

1. Step 1: Write the proportion equation
   109,556 : 168,980 = 168,980 : x
2. Step 2: Convert to fraction form
   109,556/168,980 = 168,980/x
3. Step 3: Cross multiply
   109,556x = 168,980 × 168,980
4. Step 4: Simplify right side
   109,556x = 28,554,240,400
5. Step 5: Solve for x
   x = 28,554,240,400/109,556
6. Step 6: Final answer
   x = 260,636.03