Finding the Third Proportional to 9,143.38 and 19,674.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143.38 : 19,674.25 = 19,674.25 : x
2. Step 2: Convert to fraction form
   9,143.38/19,674.25 = 19,674.25/x
3. Step 3: Cross multiply
   9,143.38x = 19,674.25 × 19,674.25
4. Step 4: Simplify right side
   9,143.38x = 387,076,113.06
5. Step 5: Solve for x
   x = 387,076,113.06/9,143.38
6. Step 6: Final answer
   x = 42,334.05