Finding the Third Proportional to 3,580.03 and 7,706.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,580.03 : 7,706.81 = 7,706.81 : x
2. Step 2: Convert to fraction form
   3,580.03/7,706.81 = 7,706.81/x
3. Step 3: Cross multiply
   3,580.03x = 7,706.81 × 7,706.81
4. Step 4: Simplify right side
   3,580.03x = 59,394,958.91
5. Step 5: Solve for x
   x = 59,394,958.91/3,580.03
6. Step 6: Final answer
   x = 16,590.63