Finding the Third Proportional to 12,756.75 and 19,800.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,756.75 : 19,800.75 = 19,800.75 : x
2. Step 2: Convert to fraction form
   12,756.75/19,800.75 = 19,800.75/x
3. Step 3: Cross multiply
   12,756.75x = 19,800.75 × 19,800.75
4. Step 4: Simplify right side
   12,756.75x = 392,069,700.56
5. Step 5: Solve for x
   x = 392,069,700.56/12,756.75
6. Step 6: Final answer
   x = 30,734.29