Finding the Third Proportional to 103,684 and 215,150

Step by Step Solution

1. Step 1: Write the proportion equation
   103,684 : 215,150 = 215,150 : x
2. Step 2: Convert to fraction form
   103,684/215,150 = 215,150/x
3. Step 3: Cross multiply
   103,684x = 215,150 × 215,150
4. Step 4: Simplify right side
   103,684x = 46,289,522,500
5. Step 5: Solve for x
   x = 46,289,522,500/103,684
6. Step 6: Final answer
   x = 446,448.08