Finding the Third Proportional to 72,612.25 and 159,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,612.25 : 159,198.50 = 159,198.50 : x
2. Step 2: Convert to fraction form
   72,612.25/159,198.50 = 159,198.50/x
3. Step 3: Cross multiply
   72,612.25x = 159,198.50 × 159,198.50
4. Step 4: Simplify right side
   72,612.25x = 25,344,162,402.25
5. Step 5: Solve for x
   x = 25,344,162,402.25/72,612.25
6. Step 6: Final answer
   x = 349,034.25