Finding the Third Proportional to 72,489.94 and 159,696.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,489.94 : 159,696.56 = 159,696.56 : x
2. Step 2: Convert to fraction form
   72,489.94/159,696.56 = 159,696.56/x
3. Step 3: Cross multiply
   72,489.94x = 159,696.56 × 159,696.56
4. Step 4: Simplify right side
   72,489.94x = 25,502,992,074.32
5. Step 5: Solve for x
   x = 25,502,992,074.32/72,489.94
6. Step 6: Final answer
   x = 351,814.24