Finding the Third Proportional to 9,056.81 and 19,665.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.81 : 19,665.28 = 19,665.28 : x
2. Step 2: Convert to fraction form
   9,056.81/19,665.28 = 19,665.28/x
3. Step 3: Cross multiply
   9,056.81x = 19,665.28 × 19,665.28
4. Step 4: Simplify right side
   9,056.81x = 386,723,286.64
5. Step 5: Solve for x
   x = 386,723,286.64/9,056.81
6. Step 6: Final answer
   x = 42,699.71