Finding the Third Proportional to 72,188 and 111,100

Step by Step Solution

1. Step 1: Write the proportion equation
   72,188 : 111,100 = 111,100 : x
2. Step 2: Convert to fraction form
   72,188/111,100 = 111,100/x
3. Step 3: Cross multiply
   72,188x = 111,100 × 111,100
4. Step 4: Simplify right side
   72,188x = 12,343,210,000
5. Step 5: Solve for x
   x = 12,343,210,000/72,188
6. Step 6: Final answer
   x = 170,987.01