Finding the Third Proportional to 21,308.91 and 31,963.36

Step by Step Solution

1. Step 1: Write the proportion equation
   21,308.91 : 31,963.36 = 31,963.36 : x
2. Step 2: Convert to fraction form
   21,308.91/31,963.36 = 31,963.36/x
3. Step 3: Cross multiply
   21,308.91x = 31,963.36 × 31,963.36
4. Step 4: Simplify right side
   21,308.91x = 1,021,656,342.54
5. Step 5: Solve for x
   x = 1,021,656,342.54/21,308.91
6. Step 6: Final answer
   x = 47,945.04