Finding the Third Proportional to 1,123,864 and 1,679,148

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,864 : 1,679,148 = 1,679,148 : x
2. Step 2: Convert to fraction form
   1,123,864/1,679,148 = 1,679,148/x
3. Step 3: Cross multiply
   1,123,864x = 1,679,148 × 1,679,148
4. Step 4: Simplify right side
   1,123,864x = 2,819,538,005,904
5. Step 5: Solve for x
   x = 2,819,538,005,904/1,123,864
6. Step 6: Final answer
   x = 2,508,789.32