Finding the Third Proportional to 518,956 and 1,123,206

Step by Step Solution

1. Step 1: Write the proportion equation
   518,956 : 1,123,206 = 1,123,206 : x
2. Step 2: Convert to fraction form
   518,956/1,123,206 = 1,123,206/x
3. Step 3: Cross multiply
   518,956x = 1,123,206 × 1,123,206
4. Step 4: Simplify right side
   518,956x = 1,261,591,718,436
5. Step 5: Solve for x
   x = 1,261,591,718,436/518,956
6. Step 6: Final answer
   x = 2,431,018.66