Finding the Third Proportional to 10,285.50 and 21,299.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,285.50 : 21,299.25 = 21,299.25 : x
2. Step 2: Convert to fraction form
   10,285.50/21,299.25 = 21,299.25/x
3. Step 3: Cross multiply
   10,285.50x = 21,299.25 × 21,299.25
4. Step 4: Simplify right side
   10,285.50x = 453,658,050.56
5. Step 5: Solve for x
   x = 453,658,050.56/10,285.50
6. Step 6: Final answer
   x = 44,106.56