Finding the Third Proportional to 19,494.38 and 42,228.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,494.38 : 42,228.75 = 42,228.75 : x
2. Step 2: Convert to fraction form
   19,494.38/42,228.75 = 42,228.75/x
3. Step 3: Cross multiply
   19,494.38x = 42,228.75 × 42,228.75
4. Step 4: Simplify right side
   19,494.38x = 1,783,267,326.56
5. Step 5: Solve for x
   x = 1,783,267,326.56/19,494.38
6. Step 6: Final answer
   x = 91,475.99