Finding the Third Proportional to 5,404.85 and 10,126.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.85 : 10,126.27 = 10,126.27 : x
2. Step 2: Convert to fraction form
   5,404.85/10,126.27 = 10,126.27/x
3. Step 3: Cross multiply
   5,404.85x = 10,126.27 × 10,126.27
4. Step 4: Simplify right side
   5,404.85x = 102,541,255.51
5. Step 5: Solve for x
   x = 102,541,255.51/5,404.85
6. Step 6: Final answer
   x = 18,972.08