Finding the Third Proportional to 1,680,612 and 3,687,768

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,612 : 3,687,768 = 3,687,768 : x
2. Step 2: Convert to fraction form
   1,680,612/3,687,768 = 3,687,768/x
3. Step 3: Cross multiply
   1,680,612x = 3,687,768 × 3,687,768
4. Step 4: Simplify right side
   1,680,612x = 13,599,632,821,824
5. Step 5: Solve for x
   x = 13,599,632,821,824/1,680,612
6. Step 6: Final answer
   x = 8,092,071.71