Finding the Third Proportional to 602,400 and 1,284,864

Step by Step Solution

1. Step 1: Write the proportion equation
   602,400 : 1,284,864 = 1,284,864 : x
2. Step 2: Convert to fraction form
   602,400/1,284,864 = 1,284,864/x
3. Step 3: Cross multiply
   602,400x = 1,284,864 × 1,284,864
4. Step 4: Simplify right side
   602,400x = 1,650,875,498,496
5. Step 5: Solve for x
   x = 1,650,875,498,496/602,400
6. Step 6: Final answer
   x = 2,740,497.18