Finding the Third Proportional to 3,211.31 and 7,114.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,211.31 : 7,114.88 = 7,114.88 : x
2. Step 2: Convert to fraction form
   3,211.31/7,114.88 = 7,114.88/x
3. Step 3: Cross multiply
   3,211.31x = 7,114.88 × 7,114.88
4. Step 4: Simplify right side
   3,211.31x = 50,621,446.27
5. Step 5: Solve for x
   x = 50,621,446.27/3,211.31
6. Step 6: Final answer
   x = 15,763.48