Finding the Third Proportional to 9,423.50 and 19,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,423.50 : 19,815.50 = 19,815.50 : x
2. Step 2: Convert to fraction form
   9,423.50/19,815.50 = 19,815.50/x
3. Step 3: Cross multiply
   9,423.50x = 19,815.50 × 19,815.50
4. Step 4: Simplify right side
   9,423.50x = 392,654,040.25
5. Step 5: Solve for x
   x = 392,654,040.25/9,423.50
6. Step 6: Final answer
   x = 41,667.54