Finding the Third Proportional to 7,212.94 and 10,790.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,212.94 : 10,790.57 = 10,790.57 : x
2. Step 2: Convert to fraction form
   7,212.94/10,790.57 = 10,790.57/x
3. Step 3: Cross multiply
   7,212.94x = 10,790.57 × 10,790.57
4. Step 4: Simplify right side
   7,212.94x = 116,436,410.30
5. Step 5: Solve for x
   x = 116,436,410.30/7,212.94
6. Step 6: Final answer
   x = 16,142.72