Finding the Third Proportional to 21,235.50 and 31,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,235.50 : 31,906.50 = 31,906.50 : x
2. Step 2: Convert to fraction form
   21,235.50/31,906.50 = 31,906.50/x
3. Step 3: Cross multiply
   21,235.50x = 31,906.50 × 31,906.50
4. Step 4: Simplify right side
   21,235.50x = 1,018,024,742.25
5. Step 5: Solve for x
   x = 1,018,024,742.25/21,235.50
6. Step 6: Final answer
   x = 47,939.76