Finding the Third Proportional to 21,037 and 31,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,037 : 31,609.50 = 31,609.50 : x
2. Step 2: Convert to fraction form
   21,037/31,609.50 = 31,609.50/x
3. Step 3: Cross multiply
   21,037x = 31,609.50 × 31,609.50
4. Step 4: Simplify right side
   21,037x = 999,160,490.25
5. Step 5: Solve for x
   x = 999,160,490.25/21,037
6. Step 6: Final answer
   x = 47,495.39