Finding the Third Proportional to 33,859.13 and 72,921.38

Step by Step Solution

1. Step 1: Write the proportion equation
   33,859.13 : 72,921.38 = 72,921.38 : x
2. Step 2: Convert to fraction form
   33,859.13/72,921.38 = 72,921.38/x
3. Step 3: Cross multiply
   33,859.13x = 72,921.38 × 72,921.38
4. Step 4: Simplify right side
   33,859.13x = 5,317,526,931.89
5. Step 5: Solve for x
   x = 5,317,526,931.89/33,859.13
6. Step 6: Final answer
   x = 157,048.56