Finding the Third Proportional to 9,485 and 20,424

Step by Step Solution

1. Step 1: Write the proportion equation
   9,485 : 20,424 = 20,424 : x
2. Step 2: Convert to fraction form
   9,485/20,424 = 20,424/x
3. Step 3: Cross multiply
   9,485x = 20,424 × 20,424
4. Step 4: Simplify right side
   9,485x = 417,139,776
5. Step 5: Solve for x
   x = 417,139,776/9,485
6. Step 6: Final answer
   x = 43,978.89