Finding the Third Proportional to 3,744.56 and 8,904.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.56 : 8,904.09 = 8,904.09 : x
2. Step 2: Convert to fraction form
   3,744.56/8,904.09 = 8,904.09/x
3. Step 3: Cross multiply
   3,744.56x = 8,904.09 × 8,904.09
4. Step 4: Simplify right side
   3,744.56x = 79,282,885.51
5. Step 5: Solve for x
   x = 79,282,885.51/3,744.56
6. Step 6: Final answer
   x = 21,172.80