Finding the Third Proportional to 5,672.53 and 8,474.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,672.53 : 8,474.63 = 8,474.63 : x
2. Step 2: Convert to fraction form
   5,672.53/8,474.63 = 8,474.63/x
3. Step 3: Cross multiply
   5,672.53x = 8,474.63 × 8,474.63
4. Step 4: Simplify right side
   5,672.53x = 71,819,268.89
5. Step 5: Solve for x
   x = 71,819,268.89/5,672.53
6. Step 6: Final answer
   x = 12,660.89