Finding the Third Proportional to 1,489,616 and 3,238,432

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,616 : 3,238,432 = 3,238,432 : x
2. Step 2: Convert to fraction form
   1,489,616/3,238,432 = 3,238,432/x
3. Step 3: Cross multiply
   1,489,616x = 3,238,432 × 3,238,432
4. Step 4: Simplify right side
   1,489,616x = 10,487,441,818,624
5. Step 5: Solve for x
   x = 10,487,441,818,624/1,489,616
6. Step 6: Final answer
   x = 7,040,365.99