Finding the Third Proportional to 33,153.75 and 68,221.13

Step by Step Solution

1. Step 1: Write the proportion equation
   33,153.75 : 68,221.13 = 68,221.13 : x
2. Step 2: Convert to fraction form
   33,153.75/68,221.13 = 68,221.13/x
3. Step 3: Cross multiply
   33,153.75x = 68,221.13 × 68,221.13
4. Step 4: Simplify right side
   33,153.75x = 4,654,121,896.27
5. Step 5: Solve for x
   x = 4,654,121,896.27/33,153.75
6. Step 6: Final answer
   x = 140,379.95