Finding the Third Proportional to 1,586,690 and 3,488,307

Step by Step Solution

1. Step 1: Write the proportion equation
   1,586,690 : 3,488,307 = 3,488,307 : x
2. Step 2: Convert to fraction form
   1,586,690/3,488,307 = 3,488,307/x
3. Step 3: Cross multiply
   1,586,690x = 3,488,307 × 3,488,307
4. Step 4: Simplify right side
   1,586,690x = 12,168,285,726,249
5. Step 5: Solve for x
   x = 12,168,285,726,249/1,586,690
6. Step 6: Final answer
   x = 7,668,974.86