Finding the Third Proportional to 9,021.38 and 19,677.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.38 : 19,677.94 = 19,677.94 : x
2. Step 2: Convert to fraction form
   9,021.38/19,677.94 = 19,677.94/x
3. Step 3: Cross multiply
   9,021.38x = 19,677.94 × 19,677.94
4. Step 4: Simplify right side
   9,021.38x = 387,221,224.25
5. Step 5: Solve for x
   x = 387,221,224.25/9,021.38
6. Step 6: Final answer
   x = 42,922.64