Finding the Third Proportional to 4,708.76 and 7,123.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,708.76 : 7,123.89 = 7,123.89 : x
2. Step 2: Convert to fraction form
   4,708.76/7,123.89 = 7,123.89/x
3. Step 3: Cross multiply
   4,708.76x = 7,123.89 × 7,123.89
4. Step 4: Simplify right side
   4,708.76x = 50,749,761.98
5. Step 5: Solve for x
   x = 50,749,761.98/4,708.76
6. Step 6: Final answer
   x = 10,777.74