Finding the Third Proportional to 3,391,508 and 7,187,368

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391,508 : 7,187,368 = 7,187,368 : x
2. Step 2: Convert to fraction form
   3,391,508/7,187,368 = 7,187,368/x
3. Step 3: Cross multiply
   3,391,508x = 7,187,368 × 7,187,368
4. Step 4: Simplify right side
   3,391,508x = 51,658,258,767,424
5. Step 5: Solve for x
   x = 51,658,258,767,424/3,391,508
6. Step 6: Final answer
   x = 15,231,648.80