Finding the Third Proportional to 72,684 and 111,051

Step by Step Solution

1. Step 1: Write the proportion equation
   72,684 : 111,051 = 111,051 : x
2. Step 2: Convert to fraction form
   72,684/111,051 = 111,051/x
3. Step 3: Cross multiply
   72,684x = 111,051 × 111,051
4. Step 4: Simplify right side
   72,684x = 12,332,324,601
5. Step 5: Solve for x
   x = 12,332,324,601/72,684
6. Step 6: Final answer
   x = 169,670.42