Finding the Third Proportional to 8,363 and 13,385

Step by Step Solution

1. Step 1: Write the proportion equation
   8,363 : 13,385 = 13,385 : x
2. Step 2: Convert to fraction form
   8,363/13,385 = 13,385/x
3. Step 3: Cross multiply
   8,363x = 13,385 × 13,385
4. Step 4: Simplify right side
   8,363x = 179,158,225
5. Step 5: Solve for x
   x = 179,158,225/8,363
6. Step 6: Final answer
   x = 21,422.72