Finding the Third Proportional to 1,691,728 and 2,490,864

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,728 : 2,490,864 = 2,490,864 : x
2. Step 2: Convert to fraction form
   1,691,728/2,490,864 = 2,490,864/x
3. Step 3: Cross multiply
   1,691,728x = 2,490,864 × 2,490,864
4. Step 4: Simplify right side
   1,691,728x = 6,204,403,466,496
5. Step 5: Solve for x
   x = 6,204,403,466,496/1,691,728
6. Step 6: Final answer
   x = 3,667,494.70