Finding the Third Proportional to 72,144.84 and 111,042.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,144.84 : 111,042.56 = 111,042.56 : x
2. Step 2: Convert to fraction form
   72,144.84/111,042.56 = 111,042.56/x
3. Step 3: Cross multiply
   72,144.84x = 111,042.56 × 111,042.56
4. Step 4: Simplify right side
   72,144.84x = 12,330,450,686.57
5. Step 5: Solve for x
   x = 12,330,450,686.57/72,144.84
6. Step 6: Final answer
   x = 170,912.43