Finding the Third Proportional to 1,800,680 and 3,900,304

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800,680 : 3,900,304 = 3,900,304 : x
2. Step 2: Convert to fraction form
   1,800,680/3,900,304 = 3,900,304/x
3. Step 3: Cross multiply
   1,800,680x = 3,900,304 × 3,900,304
4. Step 4: Simplify right side
   1,800,680x = 15,212,371,292,416
5. Step 5: Solve for x
   x = 15,212,371,292,416/1,800,680
6. Step 6: Final answer
   x = 8,448,125.87