Finding the Third Proportional to 72,195 and 111,110.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,195 : 111,110.50 = 111,110.50 : x
2. Step 2: Convert to fraction form
   72,195/111,110.50 = 111,110.50/x
3. Step 3: Cross multiply
   72,195x = 111,110.50 × 111,110.50
4. Step 4: Simplify right side
   72,195x = 12,345,543,210.25
5. Step 5: Solve for x
   x = 12,345,543,210.25/72,195
6. Step 6: Final answer
   x = 171,002.75