Finding the Third Proportional to 4,112.81 and 9,025.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,112.81 : 9,025.78 = 9,025.78 : x
2. Step 2: Convert to fraction form
   4,112.81/9,025.78 = 9,025.78/x
3. Step 3: Cross multiply
   4,112.81x = 9,025.78 × 9,025.78
4. Step 4: Simplify right side
   4,112.81x = 81,464,727.17
5. Step 5: Solve for x
   x = 81,464,727.17/4,112.81
6. Step 6: Final answer
   x = 19,807.55