Finding the Third Proportional to 10,686.75 and 15,683.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.75 : 15,683.25 = 15,683.25 : x
2. Step 2: Convert to fraction form
   10,686.75/15,683.25 = 15,683.25/x
3. Step 3: Cross multiply
   10,686.75x = 15,683.25 × 15,683.25
4. Step 4: Simplify right side
   10,686.75x = 245,964,330.56
5. Step 5: Solve for x
   x = 245,964,330.56/10,686.75
6. Step 6: Final answer
   x = 23,015.82