Finding the Third Proportional to 9,499.78 and 19,405.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.78 : 19,405.83 = 19,405.83 : x
2. Step 2: Convert to fraction form
   9,499.78/19,405.83 = 19,405.83/x
3. Step 3: Cross multiply
   9,499.78x = 19,405.83 × 19,405.83
4. Step 4: Simplify right side
   9,499.78x = 376,586,165.22
5. Step 5: Solve for x
   x = 376,586,165.22/9,499.78
6. Step 6: Final answer
   x = 39,641.56