Finding the Third Proportional to 9,814.50 and 20,385

Step by Step Solution

1. Step 1: Write the proportion equation
   9,814.50 : 20,385 = 20,385 : x
2. Step 2: Convert to fraction form
   9,814.50/20,385 = 20,385/x
3. Step 3: Cross multiply
   9,814.50x = 20,385 × 20,385
4. Step 4: Simplify right side
   9,814.50x = 415,548,225
5. Step 5: Solve for x
   x = 415,548,225/9,814.50
6. Step 6: Final answer
   x = 42,340.23