Finding the Third Proportional to 5,149.99 and 10,573.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149.99 : 10,573.35 = 10,573.35 : x
2. Step 2: Convert to fraction form
   5,149.99/10,573.35 = 10,573.35/x
3. Step 3: Cross multiply
   5,149.99x = 10,573.35 × 10,573.35
4. Step 4: Simplify right side
   5,149.99x = 111,795,680.66
5. Step 5: Solve for x
   x = 111,795,680.66/5,149.99
6. Step 6: Final answer
   x = 21,707.96