Finding the Third Proportional to 6,900 and 14,621.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,900 : 14,621.25 = 14,621.25 : x
2. Step 2: Convert to fraction form
   6,900/14,621.25 = 14,621.25/x
3. Step 3: Cross multiply
   6,900x = 14,621.25 × 14,621.25
4. Step 4: Simplify right side
   6,900x = 213,780,951.56
5. Step 5: Solve for x
   x = 213,780,951.56/6,900
6. Step 6: Final answer
   x = 30,982.75