Finding the Third Proportional to 9,642.38 and 21,134.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,642.38 : 21,134.25 = 21,134.25 : x
2. Step 2: Convert to fraction form
   9,642.38/21,134.25 = 21,134.25/x
3. Step 3: Cross multiply
   9,642.38x = 21,134.25 × 21,134.25
4. Step 4: Simplify right side
   9,642.38x = 446,656,523.06
5. Step 5: Solve for x
   x = 446,656,523.06/9,642.38
6. Step 6: Final answer
   x = 46,322.25