Finding the Third Proportional to 3,630 and 7,920.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630 : 7,920.56 = 7,920.56 : x
2. Step 2: Convert to fraction form
   3,630/7,920.56 = 7,920.56/x
3. Step 3: Cross multiply
   3,630x = 7,920.56 × 7,920.56
4. Step 4: Simplify right side
   3,630x = 62,735,310.32
5. Step 5: Solve for x
   x = 62,735,310.32/3,630
6. Step 6: Final answer
   x = 17,282.45