Finding the Third Proportional to 20,257.31 and 30,665.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,257.31 : 30,665.25 = 30,665.25 : x
2. Step 2: Convert to fraction form
   20,257.31/30,665.25 = 30,665.25/x
3. Step 3: Cross multiply
   20,257.31x = 30,665.25 × 30,665.25
4. Step 4: Simplify right side
   20,257.31x = 940,357,557.56
5. Step 5: Solve for x
   x = 940,357,557.56/20,257.31
6. Step 6: Final answer
   x = 46,420.65