Finding the Third Proportional to 33,080.25 and 72,721.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,080.25 : 72,721.50 = 72,721.50 : x
2. Step 2: Convert to fraction form
   33,080.25/72,721.50 = 72,721.50/x
3. Step 3: Cross multiply
   33,080.25x = 72,721.50 × 72,721.50
4. Step 4: Simplify right side
   33,080.25x = 5,288,416,562.25
5. Step 5: Solve for x
   x = 5,288,416,562.25/33,080.25
6. Step 6: Final answer
   x = 159,866.28