Finding the Third Proportional to 10,173.52 and 21,126.66

Step by Step Solution

1. Step 1: Write the proportion equation
   10,173.52 : 21,126.66 = 21,126.66 : x
2. Step 2: Convert to fraction form
   10,173.52/21,126.66 = 21,126.66/x
3. Step 3: Cross multiply
   10,173.52x = 21,126.66 × 21,126.66
4. Step 4: Simplify right side
   10,173.52x = 446,335,604.31
5. Step 5: Solve for x
   x = 446,335,604.31/10,173.52
6. Step 6: Final answer
   x = 43,872.31