Finding the Third Proportional to 7,992.42 and 12,719.53

Step by Step Solution

1. Step 1: Write the proportion equation
   7,992.42 : 12,719.53 = 12,719.53 : x
2. Step 2: Convert to fraction form
   7,992.42/12,719.53 = 12,719.53/x
3. Step 3: Cross multiply
   7,992.42x = 12,719.53 × 12,719.53
4. Step 4: Simplify right side
   7,992.42x = 161,786,475.22
5. Step 5: Solve for x
   x = 161,786,475.22/7,992.42
6. Step 6: Final answer
   x = 20,242.48