Finding the Third Proportional to 20,680.31 and 30,937.78

Step by Step Solution

1. Step 1: Write the proportion equation
   20,680.31 : 30,937.78 = 30,937.78 : x
2. Step 2: Convert to fraction form
   20,680.31/30,937.78 = 30,937.78/x
3. Step 3: Cross multiply
   20,680.31x = 30,937.78 × 30,937.78
4. Step 4: Simplify right side
   20,680.31x = 957,146,308.67
5. Step 5: Solve for x
   x = 957,146,308.67/20,680.31
6. Step 6: Final answer
   x = 46,282.97