Finding the Third Proportional to 4,928.58 and 10,636.71

Step by Step Solution

1. Step 1: Write the proportion equation
   4,928.58 : 10,636.71 = 10,636.71 : x
2. Step 2: Convert to fraction form
   4,928.58/10,636.71 = 10,636.71/x
3. Step 3: Cross multiply
   4,928.58x = 10,636.71 × 10,636.71
4. Step 4: Simplify right side
   4,928.58x = 113,139,557.24
5. Step 5: Solve for x
   x = 113,139,557.24/4,928.58
6. Step 6: Final answer
   x = 22,955.81