Finding the Third Proportional to 10,145.75 and 21,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,145.75 : 21,800.50 = 21,800.50 : x
2. Step 2: Convert to fraction form
   10,145.75/21,800.50 = 21,800.50/x
3. Step 3: Cross multiply
   10,145.75x = 21,800.50 × 21,800.50
4. Step 4: Simplify right side
   10,145.75x = 475,261,800.25
5. Step 5: Solve for x
   x = 475,261,800.25/10,145.75
6. Step 6: Final answer
   x = 46,843.44