Finding the Third Proportional to 15,191 and 31,916

Step by Step Solution

1. Step 1: Write the proportion equation
   15,191 : 31,916 = 31,916 : x
2. Step 2: Convert to fraction form
   15,191/31,916 = 31,916/x
3. Step 3: Cross multiply
   15,191x = 31,916 × 31,916
4. Step 4: Simplify right side
   15,191x = 1,018,631,056
5. Step 5: Solve for x
   x = 1,018,631,056/15,191
6. Step 6: Final answer
   x = 67,054.90