Finding the Third Proportional to 7,500.94 and 11,665.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,500.94 : 11,665.69 = 11,665.69 : x
2. Step 2: Convert to fraction form
   7,500.94/11,665.69 = 11,665.69/x
3. Step 3: Cross multiply
   7,500.94x = 11,665.69 × 11,665.69
4. Step 4: Simplify right side
   7,500.94x = 136,088,264.85
5. Step 5: Solve for x
   x = 136,088,264.85/7,500.94
6. Step 6: Final answer
   x = 18,142.83