Finding the Third Proportional to 72,718 and 158,576

Step by Step Solution

1. Step 1: Write the proportion equation
   72,718 : 158,576 = 158,576 : x
2. Step 2: Convert to fraction form
   72,718/158,576 = 158,576/x
3. Step 3: Cross multiply
   72,718x = 158,576 × 158,576
4. Step 4: Simplify right side
   72,718x = 25,146,347,776
5. Step 5: Solve for x
   x = 25,146,347,776/72,718
6. Step 6: Final answer
   x = 345,806.37