Finding the Third Proportional to 4,308.75 and 9,434.25

Step by Step Solution

1. Step 1: Write the proportion equation
   4,308.75 : 9,434.25 = 9,434.25 : x
2. Step 2: Convert to fraction form
   4,308.75/9,434.25 = 9,434.25/x
3. Step 3: Cross multiply
   4,308.75x = 9,434.25 × 9,434.25
4. Step 4: Simplify right side
   4,308.75x = 89,005,073.06
5. Step 5: Solve for x
   x = 89,005,073.06/4,308.75
6. Step 6: Final answer
   x = 20,656.82