Finding the Third Proportional to 9,860 and 21,448

Step by Step Solution

1. Step 1: Write the proportion equation
   9,860 : 21,448 = 21,448 : x
2. Step 2: Convert to fraction form
   9,860/21,448 = 21,448/x
3. Step 3: Cross multiply
   9,860x = 21,448 × 21,448
4. Step 4: Simplify right side
   9,860x = 460,016,704
5. Step 5: Solve for x
   x = 460,016,704/9,860
6. Step 6: Final answer
   x = 46,654.84