Finding the Third Proportional to 18,719.72 and 40,719.94

Step by Step Solution

1. Step 1: Write the proportion equation
   18,719.72 : 40,719.94 = 40,719.94 : x
2. Step 2: Convert to fraction form
   18,719.72/40,719.94 = 40,719.94/x
3. Step 3: Cross multiply
   18,719.72x = 40,719.94 × 40,719.94
4. Step 4: Simplify right side
   18,719.72x = 1,658,113,310.00
5. Step 5: Solve for x
   x = 1,658,113,310.00/18,719.72
6. Step 6: Final answer
   x = 88,575.76