Finding the Third Proportional to 33,243.90 and 72,138.96

Step by Step Solution

1. Step 1: Write the proportion equation
   33,243.90 : 72,138.96 = 72,138.96 : x
2. Step 2: Convert to fraction form
   33,243.90/72,138.96 = 72,138.96/x
3. Step 3: Cross multiply
   33,243.90x = 72,138.96 × 72,138.96
4. Step 4: Simplify right side
   33,243.90x = 5,204,030,107.83
5. Step 5: Solve for x
   x = 5,204,030,107.83/33,243.90
6. Step 6: Final answer
   x = 156,540.93