Finding the Third Proportional to 81,360 and 168,868

Step by Step Solution

1. Step 1: Write the proportion equation
   81,360 : 168,868 = 168,868 : x
2. Step 2: Convert to fraction form
   81,360/168,868 = 168,868/x
3. Step 3: Cross multiply
   81,360x = 168,868 × 168,868
4. Step 4: Simplify right side
   81,360x = 28,516,401,424
5. Step 5: Solve for x
   x = 28,516,401,424/81,360
6. Step 6: Final answer
   x = 350,496.58