Finding the Third Proportional to 5,429.53 and 7,426.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.53 : 7,426.69 = 7,426.69 : x
2. Step 2: Convert to fraction form
   5,429.53/7,426.69 = 7,426.69/x
3. Step 3: Cross multiply
   5,429.53x = 7,426.69 × 7,426.69
4. Step 4: Simplify right side
   5,429.53x = 55,155,687.22
5. Step 5: Solve for x
   x = 55,155,687.22/5,429.53
6. Step 6: Final answer
   x = 10,158.46