Finding the Third Proportional to 1,445,344 and 3,213,842

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,344 : 3,213,842 = 3,213,842 : x
2. Step 2: Convert to fraction form
   1,445,344/3,213,842 = 3,213,842/x
3. Step 3: Cross multiply
   1,445,344x = 3,213,842 × 3,213,842
4. Step 4: Simplify right side
   1,445,344x = 10,328,780,400,964
5. Step 5: Solve for x
   x = 10,328,780,400,964/1,445,344
6. Step 6: Final answer
   x = 7,146,243.66