Finding the Third Proportional to 9,434.25 and 19,992.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.25 : 19,992.38 = 19,992.38 : x
2. Step 2: Convert to fraction form
   9,434.25/19,992.38 = 19,992.38/x
3. Step 3: Cross multiply
   9,434.25x = 19,992.38 × 19,992.38
4. Step 4: Simplify right side
   9,434.25x = 399,695,058.14
5. Step 5: Solve for x
   x = 399,695,058.14/9,434.25
6. Step 6: Final answer
   x = 42,366.38