Finding the Third Proportional to 10,856.75 and 23,657.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.75 : 23,657.50 = 23,657.50 : x
2. Step 2: Convert to fraction form
   10,856.75/23,657.50 = 23,657.50/x
3. Step 3: Cross multiply
   10,856.75x = 23,657.50 × 23,657.50
4. Step 4: Simplify right side
   10,856.75x = 559,677,306.25
5. Step 5: Solve for x
   x = 559,677,306.25/10,856.75
6. Step 6: Final answer
   x = 51,551.09