Finding the Third Proportional to 19,958.91 and 42,945.19

Step by Step Solution

1. Step 1: Write the proportion equation
   19,958.91 : 42,945.19 = 42,945.19 : x
2. Step 2: Convert to fraction form
   19,958.91/42,945.19 = 42,945.19/x
3. Step 3: Cross multiply
   19,958.91x = 42,945.19 × 42,945.19
4. Step 4: Simplify right side
   19,958.91x = 1,844,289,129.41
5. Step 5: Solve for x
   x = 1,844,289,129.41/19,958.91
6. Step 6: Final answer
   x = 92,404.32