Finding the Third Proportional to 5,039.72 and 10,680.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,039.72 : 10,680.61 = 10,680.61 : x
2. Step 2: Convert to fraction form
   5,039.72/10,680.61 = 10,680.61/x
3. Step 3: Cross multiply
   5,039.72x = 10,680.61 × 10,680.61
4. Step 4: Simplify right side
   5,039.72x = 114,075,416.62
5. Step 5: Solve for x
   x = 114,075,416.62/5,039.72
6. Step 6: Final answer
   x = 22,635.27