Finding the Third Proportional to 7,631.72 and 12,275.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,631.72 : 12,275.30 = 12,275.30 : x
2. Step 2: Convert to fraction form
   7,631.72/12,275.30 = 12,275.30/x
3. Step 3: Cross multiply
   7,631.72x = 12,275.30 × 12,275.30
4. Step 4: Simplify right side
   7,631.72x = 150,682,913.37
5. Step 5: Solve for x
   x = 150,682,913.37/7,631.72
6. Step 6: Final answer
   x = 19,744.30