Finding the Third Proportional to 72,189.98 and 111,104.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,189.98 : 111,104.16 = 111,104.16 : x
2. Step 2: Convert to fraction form
   72,189.98/111,104.16 = 111,104.16/x
3. Step 3: Cross multiply
   72,189.98x = 111,104.16 × 111,104.16
4. Step 4: Simplify right side
   72,189.98x = 12,344,133,536.02
5. Step 5: Solve for x
   x = 12,344,133,536.02/72,189.98
6. Step 6: Final answer
   x = 170,995.10