Finding the Third Proportional to 4,139.25 and 9,005.25

Step by Step Solution

1. Step 1: Write the proportion equation
   4,139.25 : 9,005.25 = 9,005.25 : x
2. Step 2: Convert to fraction form
   4,139.25/9,005.25 = 9,005.25/x
3. Step 3: Cross multiply
   4,139.25x = 9,005.25 × 9,005.25
4. Step 4: Simplify right side
   4,139.25x = 81,094,527.56
5. Step 5: Solve for x
   x = 81,094,527.56/4,139.25
6. Step 6: Final answer
   x = 19,591.60