Finding the Third Proportional to 20,234.81 and 30,634.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,234.81 : 30,634.31 = 30,634.31 : x
2. Step 2: Convert to fraction form
   20,234.81/30,634.31 = 30,634.31/x
3. Step 3: Cross multiply
   20,234.81x = 30,634.31 × 30,634.31
4. Step 4: Simplify right side
   20,234.81x = 938,461,102.35
5. Step 5: Solve for x
   x = 938,461,102.35/20,234.81
6. Step 6: Final answer
   x = 46,378.54