Finding the Third Proportional to 10,856 and 23,615.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856 : 23,615.50 = 23,615.50 : x
2. Step 2: Convert to fraction form
   10,856/23,615.50 = 23,615.50/x
3. Step 3: Cross multiply
   10,856x = 23,615.50 × 23,615.50
4. Step 4: Simplify right side
   10,856x = 557,691,840.25
5. Step 5: Solve for x
   x = 557,691,840.25/10,856
6. Step 6: Final answer
   x = 51,371.76