Finding the Third Proportional to 3,561.75 and 7,808.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.75 : 7,808.63 = 7,808.63 : x
2. Step 2: Convert to fraction form
   3,561.75/7,808.63 = 7,808.63/x
3. Step 3: Cross multiply
   3,561.75x = 7,808.63 × 7,808.63
4. Step 4: Simplify right side
   3,561.75x = 60,974,624.39
5. Step 5: Solve for x
   x = 60,974,624.39/3,561.75
6. Step 6: Final answer
   x = 17,119.29