Finding the Third Proportional to 33,287.25 and 72,405.75

Step by Step Solution

1. Step 1: Write the proportion equation
   33,287.25 : 72,405.75 = 72,405.75 : x
2. Step 2: Convert to fraction form
   33,287.25/72,405.75 = 72,405.75/x
3. Step 3: Cross multiply
   33,287.25x = 72,405.75 × 72,405.75
4. Step 4: Simplify right side
   33,287.25x = 5,242,592,633.06
5. Step 5: Solve for x
   x = 5,242,592,633.06/33,287.25
6. Step 6: Final answer
   x = 157,495.52