Finding the Third Proportional to 1,449,738 and 3,109,428

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449,738 : 3,109,428 = 3,109,428 : x
2. Step 2: Convert to fraction form
   1,449,738/3,109,428 = 3,109,428/x
3. Step 3: Cross multiply
   1,449,738x = 3,109,428 × 3,109,428
4. Step 4: Simplify right side
   1,449,738x = 9,668,542,487,184
5. Step 5: Solve for x
   x = 9,668,542,487,184/1,449,738
6. Step 6: Final answer
   x = 6,669,165.39