Finding the Third Proportional to 111,467 and 168,389

Step by Step Solution

1. Step 1: Write the proportion equation
   111,467 : 168,389 = 168,389 : x
2. Step 2: Convert to fraction form
   111,467/168,389 = 168,389/x
3. Step 3: Cross multiply
   111,467x = 168,389 × 168,389
4. Step 4: Simplify right side
   111,467x = 28,354,855,321
5. Step 5: Solve for x
   x = 28,354,855,321/111,467
6. Step 6: Final answer
   x = 254,378.92