Finding the Third Proportional to 1,123,860 and 1,679,142

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,860 : 1,679,142 = 1,679,142 : x
2. Step 2: Convert to fraction form
   1,123,860/1,679,142 = 1,679,142/x
3. Step 3: Cross multiply
   1,123,860x = 1,679,142 × 1,679,142
4. Step 4: Simplify right side
   1,123,860x = 2,819,517,856,164
5. Step 5: Solve for x
   x = 2,819,517,856,164/1,123,860
6. Step 6: Final answer
   x = 2,508,780.33