Finding the Third Proportional to 8,776.50 and 21,150.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.50 : 21,150.75 = 21,150.75 : x
2. Step 2: Convert to fraction form
   8,776.50/21,150.75 = 21,150.75/x
3. Step 3: Cross multiply
   8,776.50x = 21,150.75 × 21,150.75
4. Step 4: Simplify right side
   8,776.50x = 447,354,225.56
5. Step 5: Solve for x
   x = 447,354,225.56/8,776.50
6. Step 6: Final answer
   x = 50,971.83