Finding the Third Proportional to 10,055.81 and 21,447.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,055.81 : 21,447.28 = 21,447.28 : x
2. Step 2: Convert to fraction form
   10,055.81/21,447.28 = 21,447.28/x
3. Step 3: Cross multiply
   10,055.81x = 21,447.28 × 21,447.28
4. Step 4: Simplify right side
   10,055.81x = 459,985,873.02
5. Step 5: Solve for x
   x = 459,985,873.02/10,055.81
6. Step 6: Final answer
   x = 45,743.28