Finding the Third Proportional to 4,429.69 and 5,719.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,429.69 : 5,719.78 = 5,719.78 : x
2. Step 2: Convert to fraction form
   4,429.69/5,719.78 = 5,719.78/x
3. Step 3: Cross multiply
   4,429.69x = 5,719.78 × 5,719.78
4. Step 4: Simplify right side
   4,429.69x = 32,715,897.55
5. Step 5: Solve for x
   x = 32,715,897.55/4,429.69
6. Step 6: Final answer
   x = 7,385.60