Finding the Third Proportional to 1,615,196 and 3,397,711

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,196 : 3,397,711 = 3,397,711 : x
2. Step 2: Convert to fraction form
   1,615,196/3,397,711 = 3,397,711/x
3. Step 3: Cross multiply
   1,615,196x = 3,397,711 × 3,397,711
4. Step 4: Simplify right side
   1,615,196x = 11,544,440,039,521
5. Step 5: Solve for x
   x = 11,544,440,039,521/1,615,196
6. Step 6: Final answer
   x = 7,147,392.66