Finding the Third Proportional to 2,166,778 and 4,613,492

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,778 : 4,613,492 = 4,613,492 : x
2. Step 2: Convert to fraction form
   2,166,778/4,613,492 = 4,613,492/x
3. Step 3: Cross multiply
   2,166,778x = 4,613,492 × 4,613,492
4. Step 4: Simplify right side
   2,166,778x = 21,284,308,434,064
5. Step 5: Solve for x
   x = 21,284,308,434,064/2,166,778
6. Step 6: Final answer
   x = 9,823,022.22