Finding the Third Proportional to 928.50 and 2,018.63

Step by Step Solution

1. Step 1: Write the proportion equation
   928.50 : 2,018.63 = 2,018.63 : x
2. Step 2: Convert to fraction form
   928.50/2,018.63 = 2,018.63/x
3. Step 3: Cross multiply
   928.50x = 2,018.63 × 2,018.63
4. Step 4: Simplify right side
   928.50x = 4,074,846.89
5. Step 5: Solve for x
   x = 4,074,846.89/928.50
6. Step 6: Final answer
   x = 4,388.63