Finding the Third Proportional to 921.38 and 2,018.25

Step by Step Solution

1. Step 1: Write the proportion equation
   921.38 : 2,018.25 = 2,018.25 : x
2. Step 2: Convert to fraction form
   921.38/2,018.25 = 2,018.25/x
3. Step 3: Cross multiply
   921.38x = 2,018.25 × 2,018.25
4. Step 4: Simplify right side
   921.38x = 4,073,333.06
5. Step 5: Solve for x
   x = 4,073,333.06/921.38
6. Step 6: Final answer
   x = 4,420.93