Finding the Third Proportional to 21,310.88 and 31,965.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,310.88 : 31,965.75 = 31,965.75 : x
2. Step 2: Convert to fraction form
   21,310.88/31,965.75 = 31,965.75/x
3. Step 3: Cross multiply
   21,310.88x = 31,965.75 × 31,965.75
4. Step 4: Simplify right side
   21,310.88x = 1,021,809,173.06
5. Step 5: Solve for x
   x = 1,021,809,173.06/21,310.88
6. Step 6: Final answer
   x = 47,947.78