Finding the Third Proportional to 7,668.56 and 16,429.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,668.56 : 16,429.78 = 16,429.78 : x
2. Step 2: Convert to fraction form
   7,668.56/16,429.78 = 16,429.78/x
3. Step 3: Cross multiply
   7,668.56x = 16,429.78 × 16,429.78
4. Step 4: Simplify right side
   7,668.56x = 269,937,711.92
5. Step 5: Solve for x
   x = 269,937,711.92/7,668.56
6. Step 6: Final answer
   x = 35,200.56