Finding the Third Proportional to 20,665.50 and 30,946.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,665.50 : 30,946.50 = 30,946.50 : x
2. Step 2: Convert to fraction form
   20,665.50/30,946.50 = 30,946.50/x
3. Step 3: Cross multiply
   20,665.50x = 30,946.50 × 30,946.50
4. Step 4: Simplify right side
   20,665.50x = 957,685,862.25
5. Step 5: Solve for x
   x = 957,685,862.25/20,665.50
6. Step 6: Final answer
   x = 46,342.25