Finding the Third Proportional to 9,906.75 and 21,659.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.75 : 21,659.06 = 21,659.06 : x
2. Step 2: Convert to fraction form
   9,906.75/21,659.06 = 21,659.06/x
3. Step 3: Cross multiply
   9,906.75x = 21,659.06 × 21,659.06
4. Step 4: Simplify right side
   9,906.75x = 469,114,988.38
5. Step 5: Solve for x
   x = 469,114,988.38/9,906.75
6. Step 6: Final answer
   x = 47,353.07