Finding the Third Proportional to 4,172 and 5,554

Step by Step Solution

1. Step 1: Write the proportion equation
   4,172 : 5,554 = 5,554 : x
2. Step 2: Convert to fraction form
   4,172/5,554 = 5,554/x
3. Step 3: Cross multiply
   4,172x = 5,554 × 5,554
4. Step 4: Simplify right side
   4,172x = 30,846,916
5. Step 5: Solve for x
   x = 30,846,916/4,172
6. Step 6: Final answer
   x = 7,393.80