Finding the Third Proportional to 1,690,778 and 3,440,604

Step by Step Solution

1. Step 1: Write the proportion equation
   1,690,778 : 3,440,604 = 3,440,604 : x
2. Step 2: Convert to fraction form
   1,690,778/3,440,604 = 3,440,604/x
3. Step 3: Cross multiply
   1,690,778x = 3,440,604 × 3,440,604
4. Step 4: Simplify right side
   1,690,778x = 11,837,755,884,816
5. Step 5: Solve for x
   x = 11,837,755,884,816/1,690,778
6. Step 6: Final answer
   x = 7,001,366.17