Finding the Third Proportional to 12,336 and 26,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,336 : 26,209.50 = 26,209.50 : x
2. Step 2: Convert to fraction form
   12,336/26,209.50 = 26,209.50/x
3. Step 3: Cross multiply
   12,336x = 26,209.50 × 26,209.50
4. Step 4: Simplify right side
   12,336x = 686,937,890.25
5. Step 5: Solve for x
   x = 686,937,890.25/12,336
6. Step 6: Final answer
   x = 55,685.63