Finding the Third Proportional to 71,540.72 and 155,383.31

Step by Step Solution

1. Step 1: Write the proportion equation
   71,540.72 : 155,383.31 = 155,383.31 : x
2. Step 2: Convert to fraction form
   71,540.72/155,383.31 = 155,383.31/x
3. Step 3: Cross multiply
   71,540.72x = 155,383.31 × 155,383.31
4. Step 4: Simplify right side
   71,540.72x = 24,143,973,803.47
5. Step 5: Solve for x
   x = 24,143,973,803.47/71,540.72
6. Step 6: Final answer
   x = 337,485.76