Finding the Third Proportional to 19,413.38 and 42,000.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,413.38 : 42,000.38 = 42,000.38 : x
2. Step 2: Convert to fraction form
   19,413.38/42,000.38 = 42,000.38/x
3. Step 3: Cross multiply
   19,413.38x = 42,000.38 × 42,000.38
4. Step 4: Simplify right side
   19,413.38x = 1,764,031,500.14
5. Step 5: Solve for x
   x = 1,764,031,500.14/19,413.38
6. Step 6: Final answer
   x = 90,866.81