Finding the Third Proportional to 1,008.56 and 2,221.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008.56 : 2,221.03 = 2,221.03 : x
2. Step 2: Convert to fraction form
   1,008.56/2,221.03 = 2,221.03/x
3. Step 3: Cross multiply
   1,008.56x = 2,221.03 × 2,221.03
4. Step 4: Simplify right side
   1,008.56x = 4,932,979.81
5. Step 5: Solve for x
   x = 4,932,979.81/1,008.56
6. Step 6: Final answer
   x = 4,891.10