Finding the Third Proportional to 11,837 and 17,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,837 : 17,807.50 = 17,807.50 : x
2. Step 2: Convert to fraction form
   11,837/17,807.50 = 17,807.50/x
3. Step 3: Cross multiply
   11,837x = 17,807.50 × 17,807.50
4. Step 4: Simplify right side
   11,837x = 317,107,056.25
5. Step 5: Solve for x
   x = 317,107,056.25/11,837
6. Step 6: Final answer
   x = 26,789.48