Finding the Third Proportional to 12,391 and 26,834

Step by Step Solution

1. Step 1: Write the proportion equation
   12,391 : 26,834 = 26,834 : x
2. Step 2: Convert to fraction form
   12,391/26,834 = 26,834/x
3. Step 3: Cross multiply
   12,391x = 26,834 × 26,834
4. Step 4: Simplify right side
   12,391x = 720,063,556
5. Step 5: Solve for x
   x = 720,063,556/12,391
6. Step 6: Final answer
   x = 58,111.82