Finding the Third Proportional to 4,402.69 and 9,429.75

Step by Step Solution

1. Step 1: Write the proportion equation
   4,402.69 : 9,429.75 = 9,429.75 : x
2. Step 2: Convert to fraction form
   4,402.69/9,429.75 = 9,429.75/x
3. Step 3: Cross multiply
   4,402.69x = 9,429.75 × 9,429.75
4. Step 4: Simplify right side
   4,402.69x = 88,920,185.06
5. Step 5: Solve for x
   x = 88,920,185.06/4,402.69
6. Step 6: Final answer
   x = 20,196.80