Finding the Third Proportional to 10,570.50 and 14,778.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.50 : 14,778.75 = 14,778.75 : x
2. Step 2: Convert to fraction form
   10,570.50/14,778.75 = 14,778.75/x
3. Step 3: Cross multiply
   10,570.50x = 14,778.75 × 14,778.75
4. Step 4: Simplify right side
   10,570.50x = 218,411,451.56
5. Step 5: Solve for x
   x = 218,411,451.56/10,570.50
6. Step 6: Final answer
   x = 20,662.36