Finding the Third Proportional to 72,608 and 159,188

Step by Step Solution

1. Step 1: Write the proportion equation
   72,608 : 159,188 = 159,188 : x
2. Step 2: Convert to fraction form
   72,608/159,188 = 159,188/x
3. Step 3: Cross multiply
   72,608x = 159,188 × 159,188
4. Step 4: Simplify right side
   72,608x = 25,340,819,344
5. Step 5: Solve for x
   x = 25,340,819,344/72,608
6. Step 6: Final answer
   x = 349,008.64