Finding the Third Proportional to 140,164 and 217,628

Step by Step Solution

1. Step 1: Write the proportion equation
   140,164 : 217,628 = 217,628 : x
2. Step 2: Convert to fraction form
   140,164/217,628 = 217,628/x
3. Step 3: Cross multiply
   140,164x = 217,628 × 217,628
4. Step 4: Simplify right side
   140,164x = 47,361,946,384
5. Step 5: Solve for x
   x = 47,361,946,384/140,164
6. Step 6: Final answer
   x = 337,903.79