Finding the Third Proportional to 33,490.09 and 72,238.36

Step by Step Solution

1. Step 1: Write the proportion equation
   33,490.09 : 72,238.36 = 72,238.36 : x
2. Step 2: Convert to fraction form
   33,490.09/72,238.36 = 72,238.36/x
3. Step 3: Cross multiply
   33,490.09x = 72,238.36 × 72,238.36
4. Step 4: Simplify right side
   33,490.09x = 5,218,380,565.19
5. Step 5: Solve for x
   x = 5,218,380,565.19/33,490.09
6. Step 6: Final answer
   x = 155,818.63