Finding the Third Proportional to 9,606.09 and 19,690.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,606.09 : 19,690.59 = 19,690.59 : x
2. Step 2: Convert to fraction form
   9,606.09/19,690.59 = 19,690.59/x
3. Step 3: Cross multiply
   9,606.09x = 19,690.59 × 19,690.59
4. Step 4: Simplify right side
   9,606.09x = 387,719,482.23
5. Step 5: Solve for x
   x = 387,719,482.23/9,606.09
6. Step 6: Final answer
   x = 40,361.83