Finding the Third Proportional to 1,584,426 and 3,421,383

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,426 : 3,421,383 = 3,421,383 : x
2. Step 2: Convert to fraction form
   1,584,426/3,421,383 = 3,421,383/x
3. Step 3: Cross multiply
   1,584,426x = 3,421,383 × 3,421,383
4. Step 4: Simplify right side
   1,584,426x = 11,705,861,632,689
5. Step 5: Solve for x
   x = 11,705,861,632,689/1,584,426
6. Step 6: Final answer
   x = 7,388,077.22