Finding the Third Proportional to 9,886 and 21,716

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886 : 21,716 = 21,716 : x
2. Step 2: Convert to fraction form
   9,886/21,716 = 21,716/x
3. Step 3: Cross multiply
   9,886x = 21,716 × 21,716
4. Step 4: Simplify right side
   9,886x = 471,584,656
5. Step 5: Solve for x
   x = 471,584,656/9,886
6. Step 6: Final answer
   x = 47,702.27