Finding the Third Proportional to 47,731.50 and 71,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,731.50 : 71,707.50 = 71,707.50 : x
2. Step 2: Convert to fraction form
   47,731.50/71,707.50 = 71,707.50/x
3. Step 3: Cross multiply
   47,731.50x = 71,707.50 × 71,707.50
4. Step 4: Simplify right side
   47,731.50x = 5,141,965,556.25
5. Step 5: Solve for x
   x = 5,141,965,556.25/47,731.50
6. Step 6: Final answer
   x = 107,726.88