Finding the Third Proportional to 19,959.94 and 31,311.28

Step by Step Solution

1. Step 1: Write the proportion equation
   19,959.94 : 31,311.28 = 31,311.28 : x
2. Step 2: Convert to fraction form
   19,959.94/31,311.28 = 31,311.28/x
3. Step 3: Cross multiply
   19,959.94x = 31,311.28 × 31,311.28
4. Step 4: Simplify right side
   19,959.94x = 980,396,333.52
5. Step 5: Solve for x
   x = 980,396,333.52/19,959.94
6. Step 6: Final answer
   x = 49,118.21