Finding the Third Proportional to 12,454 and 13,558

Step by Step Solution

1. Step 1: Write the proportion equation
   12,454 : 13,558 = 13,558 : x
2. Step 2: Convert to fraction form
   12,454/13,558 = 13,558/x
3. Step 3: Cross multiply
   12,454x = 13,558 × 13,558
4. Step 4: Simplify right side
   12,454x = 183,819,364
5. Step 5: Solve for x
   x = 183,819,364/12,454
6. Step 6: Final answer
   x = 14,759.87