Finding the Third Proportional to 1,784,778 and 2,718,990

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784,778 : 2,718,990 = 2,718,990 : x
2. Step 2: Convert to fraction form
   1,784,778/2,718,990 = 2,718,990/x
3. Step 3: Cross multiply
   1,784,778x = 2,718,990 × 2,718,990
4. Step 4: Simplify right side
   1,784,778x = 7,392,906,620,100
5. Step 5: Solve for x
   x = 7,392,906,620,100/1,784,778
6. Step 6: Final answer
   x = 4,142,199.55