Finding the Third Proportional to 19,286.86 and 42,178.22

Step by Step Solution

1. Step 1: Write the proportion equation
   19,286.86 : 42,178.22 = 42,178.22 : x
2. Step 2: Convert to fraction form
   19,286.86/42,178.22 = 42,178.22/x
3. Step 3: Cross multiply
   19,286.86x = 42,178.22 × 42,178.22
4. Step 4: Simplify right side
   19,286.86x = 1,779,002,136.92
5. Step 5: Solve for x
   x = 1,779,002,136.92/19,286.86
6. Step 6: Final answer
   x = 92,239.08