Finding the Third Proportional to 33,287.63 and 72,216.56

Step by Step Solution

1. Step 1: Write the proportion equation
   33,287.63 : 72,216.56 = 72,216.56 : x
2. Step 2: Convert to fraction form
   33,287.63/72,216.56 = 72,216.56/x
3. Step 3: Cross multiply
   33,287.63x = 72,216.56 × 72,216.56
4. Step 4: Simplify right side
   33,287.63x = 5,215,231,899.32
5. Step 5: Solve for x
   x = 5,215,231,899.32/33,287.63
6. Step 6: Final answer
   x = 156,671.79