Finding the Third Proportional to 17,909 and 31,483

Step by Step Solution

1. Step 1: Write the proportion equation
   17,909 : 31,483 = 31,483 : x
2. Step 2: Convert to fraction form
   17,909/31,483 = 31,483/x
3. Step 3: Cross multiply
   17,909x = 31,483 × 31,483
4. Step 4: Simplify right side
   17,909x = 991,179,289
5. Step 5: Solve for x
   x = 991,179,289/17,909
6. Step 6: Final answer
   x = 55,345.32