Finding the Third Proportional to 18,452.81 and 20,077.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,452.81 : 20,077.88 = 20,077.88 : x
2. Step 2: Convert to fraction form
   18,452.81/20,077.88 = 20,077.88/x
3. Step 3: Cross multiply
   18,452.81x = 20,077.88 × 20,077.88
4. Step 4: Simplify right side
   18,452.81x = 403,121,064.52
5. Step 5: Solve for x
   x = 403,121,064.52/18,452.81
6. Step 6: Final answer
   x = 21,846.05