Finding the Third Proportional to 3,546.70 and 7,731.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.70 : 7,731.28 = 7,731.28 : x
2. Step 2: Convert to fraction form
   3,546.70/7,731.28 = 7,731.28/x
3. Step 3: Cross multiply
   3,546.70x = 7,731.28 × 7,731.28
4. Step 4: Simplify right side
   3,546.70x = 59,772,709.77
5. Step 5: Solve for x
   x = 59,772,709.77/3,546.70
6. Step 6: Final answer
   x = 16,853.03