Finding the Third Proportional to 7,945 and 12,191

Step by Step Solution

1. Step 1: Write the proportion equation
   7,945 : 12,191 = 12,191 : x
2. Step 2: Convert to fraction form
   7,945/12,191 = 12,191/x
3. Step 3: Cross multiply
   7,945x = 12,191 × 12,191
4. Step 4: Simplify right side
   7,945x = 148,620,481
5. Step 5: Solve for x
   x = 148,620,481/7,945
6. Step 6: Final answer
   x = 18,706.17