Finding the Third Proportional to 9,778 and 13,236

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778 : 13,236 = 13,236 : x
2. Step 2: Convert to fraction form
   9,778/13,236 = 13,236/x
3. Step 3: Cross multiply
   9,778x = 13,236 × 13,236
4. Step 4: Simplify right side
   9,778x = 175,191,696
5. Step 5: Solve for x
   x = 175,191,696/9,778
6. Step 6: Final answer
   x = 17,916.93