Finding the Third Proportional to 3,213.94 and 7,042.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,213.94 : 7,042.69 = 7,042.69 : x
2. Step 2: Convert to fraction form
   3,213.94/7,042.69 = 7,042.69/x
3. Step 3: Cross multiply
   3,213.94x = 7,042.69 × 7,042.69
4. Step 4: Simplify right side
   3,213.94x = 49,599,447.22
5. Step 5: Solve for x
   x = 49,599,447.22/3,213.94
6. Step 6: Final answer
   x = 15,432.61