Finding the Third Proportional to 902,864 and 1,428,440

Step by Step Solution

1. Step 1: Write the proportion equation
   902,864 : 1,428,440 = 1,428,440 : x
2. Step 2: Convert to fraction form
   902,864/1,428,440 = 1,428,440/x
3. Step 3: Cross multiply
   902,864x = 1,428,440 × 1,428,440
4. Step 4: Simplify right side
   902,864x = 2,040,440,833,600
5. Step 5: Solve for x
   x = 2,040,440,833,600/902,864
6. Step 6: Final answer
   x = 2,259,964.77