Finding the Third Proportional to 5,104.69 and 10,450.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,104.69 : 10,450.69 = 10,450.69 : x
2. Step 2: Convert to fraction form
   5,104.69/10,450.69 = 10,450.69/x
3. Step 3: Cross multiply
   5,104.69x = 10,450.69 × 10,450.69
4. Step 4: Simplify right side
   5,104.69x = 109,216,869.22
5. Step 5: Solve for x
   x = 109,216,869.22/5,104.69
6. Step 6: Final answer
   x = 21,395.41