Finding the Third Proportional to 6,431.91 and 13,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,431.91 : 13,949.72 = 13,949.72 : x
2. Step 2: Convert to fraction form
   6,431.91/13,949.72 = 13,949.72/x
3. Step 3: Cross multiply
   6,431.91x = 13,949.72 × 13,949.72
4. Step 4: Simplify right side
   6,431.91x = 194,594,653.20
5. Step 5: Solve for x
   x = 194,594,653.20/6,431.91
6. Step 6: Final answer
   x = 30,254.58