Finding the Third Proportional to 3,423.09 and 7,392.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,423.09 : 7,392.94 = 7,392.94 : x
2. Step 2: Convert to fraction form
   3,423.09/7,392.94 = 7,392.94/x
3. Step 3: Cross multiply
   3,423.09x = 7,392.94 × 7,392.94
4. Step 4: Simplify right side
   3,423.09x = 54,655,524.88
5. Step 5: Solve for x
   x = 54,655,524.88/3,423.09
6. Step 6: Final answer
   x = 15,966.70