Finding the Third Proportional to 4,392.56 and 9,294.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,392.56 : 9,294.56 = 9,294.56 : x
2. Step 2: Convert to fraction form
   4,392.56/9,294.56 = 9,294.56/x
3. Step 3: Cross multiply
   4,392.56x = 9,294.56 × 9,294.56
4. Step 4: Simplify right side
   4,392.56x = 86,388,892.07
5. Step 5: Solve for x
   x = 86,388,892.07/4,392.56
6. Step 6: Final answer
   x = 19,667.08