Finding the Third Proportional to 33,286.50 and 72,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,286.50 : 72,403.50 = 72,403.50 : x
2. Step 2: Convert to fraction form
   33,286.50/72,403.50 = 72,403.50/x
3. Step 3: Cross multiply
   33,286.50x = 72,403.50 × 72,403.50
4. Step 4: Simplify right side
   33,286.50x = 5,242,266,812.25
5. Step 5: Solve for x
   x = 5,242,266,812.25/33,286.50
6. Step 6: Final answer
   x = 157,489.28