Finding the Third Proportional to 20,783.25 and 31,392.56

Step by Step Solution

1. Step 1: Write the proportion equation
   20,783.25 : 31,392.56 = 31,392.56 : x
2. Step 2: Convert to fraction form
   20,783.25/31,392.56 = 31,392.56/x
3. Step 3: Cross multiply
   20,783.25x = 31,392.56 × 31,392.56
4. Step 4: Simplify right side
   20,783.25x = 985,492,980.32
5. Step 5: Solve for x
   x = 985,492,980.32/20,783.25
6. Step 6: Final answer
   x = 47,417.66