Finding the Third Proportional to 31,240 and 47,904

Step by Step Solution

1. Step 1: Write the proportion equation
   31,240 : 47,904 = 47,904 : x
2. Step 2: Convert to fraction form
   31,240/47,904 = 47,904/x
3. Step 3: Cross multiply
   31,240x = 47,904 × 47,904
4. Step 4: Simplify right side
   31,240x = 2,294,793,216
5. Step 5: Solve for x
   x = 2,294,793,216/31,240
6. Step 6: Final answer
   x = 73,456.89