Finding the Third Proportional to 9,435 and 19,993.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,435 : 19,993.88 = 19,993.88 : x
2. Step 2: Convert to fraction form
   9,435/19,993.88 = 19,993.88/x
3. Step 3: Cross multiply
   9,435x = 19,993.88 × 19,993.88
4. Step 4: Simplify right side
   9,435x = 399,755,037.52
5. Step 5: Solve for x
   x = 399,755,037.52/9,435
6. Step 6: Final answer
   x = 42,369.37