Finding the Third Proportional to 21,357.42 and 33,154.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,357.42 : 33,154.31 = 33,154.31 : x
2. Step 2: Convert to fraction form
   21,357.42/33,154.31 = 33,154.31/x
3. Step 3: Cross multiply
   21,357.42x = 33,154.31 × 33,154.31
4. Step 4: Simplify right side
   21,357.42x = 1,099,208,437.35
5. Step 5: Solve for x
   x = 1,099,208,437.35/21,357.42
6. Step 6: Final answer
   x = 51,467.28