Finding the Third Proportional to 9,091 and 12,217

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091 : 12,217 = 12,217 : x
2. Step 2: Convert to fraction form
   9,091/12,217 = 12,217/x
3. Step 3: Cross multiply
   9,091x = 12,217 × 12,217
4. Step 4: Simplify right side
   9,091x = 149,255,089
5. Step 5: Solve for x
   x = 149,255,089/9,091
6. Step 6: Final answer
   x = 16,417.90