Finding the Third Proportional to 1,286,690 and 2,718,532

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,690 : 2,718,532 = 2,718,532 : x
2. Step 2: Convert to fraction form
   1,286,690/2,718,532 = 2,718,532/x
3. Step 3: Cross multiply
   1,286,690x = 2,718,532 × 2,718,532
4. Step 4: Simplify right side
   1,286,690x = 7,390,416,235,024
5. Step 5: Solve for x
   x = 7,390,416,235,024/1,286,690
6. Step 6: Final answer
   x = 5,743,742.65