Finding the Third Proportional to 19,766.25 and 42,357.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,766.25 : 42,357.38 = 42,357.38 : x
2. Step 2: Convert to fraction form
   19,766.25/42,357.38 = 42,357.38/x
3. Step 3: Cross multiply
   19,766.25x = 42,357.38 × 42,357.38
4. Step 4: Simplify right side
   19,766.25x = 1,794,147,216.89
5. Step 5: Solve for x
   x = 1,794,147,216.89/19,766.25
6. Step 6: Final answer
   x = 90,768.21