Finding the Third Proportional to 14,490 and 31,698

Step by Step Solution

1. Step 1: Write the proportion equation
   14,490 : 31,698 = 31,698 : x
2. Step 2: Convert to fraction form
   14,490/31,698 = 31,698/x
3. Step 3: Cross multiply
   14,490x = 31,698 × 31,698
4. Step 4: Simplify right side
   14,490x = 1,004,763,204
5. Step 5: Solve for x
   x = 1,004,763,204/14,490
6. Step 6: Final answer
   x = 69,341.84