Finding the Third Proportional to 11,876.63 and 17,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,876.63 : 17,860.50 = 17,860.50 : x
2. Step 2: Convert to fraction form
   11,876.63/17,860.50 = 17,860.50/x
3. Step 3: Cross multiply
   11,876.63x = 17,860.50 × 17,860.50
4. Step 4: Simplify right side
   11,876.63x = 318,997,460.25
5. Step 5: Solve for x
   x = 318,997,460.25/11,876.63
6. Step 6: Final answer
   x = 26,859.27