Finding the Third Proportional to 15,429 and 31,951

Step by Step Solution

1. Step 1: Write the proportion equation
   15,429 : 31,951 = 31,951 : x
2. Step 2: Convert to fraction form
   15,429/31,951 = 31,951/x
3. Step 3: Cross multiply
   15,429x = 31,951 × 31,951
4. Step 4: Simplify right side
   15,429x = 1,020,866,401
5. Step 5: Solve for x
   x = 1,020,866,401/15,429
6. Step 6: Final answer
   x = 66,165.43