Finding the Third Proportional to 105,408 and 168,591.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,408 : 168,591.38 = 168,591.38 : x
2. Step 2: Convert to fraction form
   105,408/168,591.38 = 168,591.38/x
3. Step 3: Cross multiply
   105,408x = 168,591.38 × 168,591.38
4. Step 4: Simplify right side
   105,408x = 28,423,051,724.39
5. Step 5: Solve for x
   x = 28,423,051,724.39/105,408
6. Step 6: Final answer
   x = 269,647.96