Finding the Third Proportional to 1,564,939 and 3,428,768

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564,939 : 3,428,768 = 3,428,768 : x
2. Step 2: Convert to fraction form
   1,564,939/3,428,768 = 3,428,768/x
3. Step 3: Cross multiply
   1,564,939x = 3,428,768 × 3,428,768
4. Step 4: Simplify right side
   1,564,939x = 11,756,449,997,824
5. Step 5: Solve for x
   x = 11,756,449,997,824/1,564,939
6. Step 6: Final answer
   x = 7,512,401.44