Finding the Third Proportional to 20,171.53 and 42,650.30

Step by Step Solution

1. Step 1: Write the proportion equation
   20,171.53 : 42,650.30 = 42,650.30 : x
2. Step 2: Convert to fraction form
   20,171.53/42,650.30 = 42,650.30/x
3. Step 3: Cross multiply
   20,171.53x = 42,650.30 × 42,650.30
4. Step 4: Simplify right side
   20,171.53x = 1,819,047,823.53
5. Step 5: Solve for x
   x = 1,819,047,823.53/20,171.53
6. Step 6: Final answer
   x = 90,178.97