Finding the Third Proportional to 72,243 and 111,179

Step by Step Solution

1. Step 1: Write the proportion equation
   72,243 : 111,179 = 111,179 : x
2. Step 2: Convert to fraction form
   72,243/111,179 = 111,179/x
3. Step 3: Cross multiply
   72,243x = 111,179 × 111,179
4. Step 4: Simplify right side
   72,243x = 12,360,770,041
5. Step 5: Solve for x
   x = 12,360,770,041/72,243
6. Step 6: Final answer
   x = 171,099.90