Finding the Third Proportional to 19,581.75 and 31,357.13

Step by Step Solution

1. Step 1: Write the proportion equation
   19,581.75 : 31,357.13 = 31,357.13 : x
2. Step 2: Convert to fraction form
   19,581.75/31,357.13 = 31,357.13/x
3. Step 3: Cross multiply
   19,581.75x = 31,357.13 × 31,357.13
4. Step 4: Simplify right side
   19,581.75x = 983,269,288.27
5. Step 5: Solve for x
   x = 983,269,288.27/19,581.75
6. Step 6: Final answer
   x = 50,213.56