Finding the Third Proportional to 20,389.22 and 30,865.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,389.22 : 30,865.75 = 30,865.75 : x
2. Step 2: Convert to fraction form
   20,389.22/30,865.75 = 30,865.75/x
3. Step 3: Cross multiply
   20,389.22x = 30,865.75 × 30,865.75
4. Step 4: Simplify right side
   20,389.22x = 952,694,281.92
5. Step 5: Solve for x
   x = 952,694,281.92/20,389.22
6. Step 6: Final answer
   x = 46,725.39