Finding the Third Proportional to 9,856.69 and 21,628.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,856.69 : 21,628.69 = 21,628.69 : x
2. Step 2: Convert to fraction form
   9,856.69/21,628.69 = 21,628.69/x
3. Step 3: Cross multiply
   9,856.69x = 21,628.69 × 21,628.69
4. Step 4: Simplify right side
   9,856.69x = 467,800,122.97
5. Step 5: Solve for x
   x = 467,800,122.97/9,856.69
6. Step 6: Final answer
   x = 47,460.18