Finding the Third Proportional to 21,197 and 31,435

Step by Step Solution

1. Step 1: Write the proportion equation
   21,197 : 31,435 = 31,435 : x
2. Step 2: Convert to fraction form
   21,197/31,435 = 31,435/x
3. Step 3: Cross multiply
   21,197x = 31,435 × 31,435
4. Step 4: Simplify right side
   21,197x = 988,159,225
5. Step 5: Solve for x
   x = 988,159,225/21,197
6. Step 6: Final answer
   x = 46,617.88