Finding the Third Proportional to 5,200,778 and 8,084,427

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200,778 : 8,084,427 = 8,084,427 : x
2. Step 2: Convert to fraction form
   5,200,778/8,084,427 = 8,084,427/x
3. Step 3: Cross multiply
   5,200,778x = 8,084,427 × 8,084,427
4. Step 4: Simplify right side
   5,200,778x = 65,357,959,918,329
5. Step 5: Solve for x
   x = 65,357,959,918,329/5,200,778
6. Step 6: Final answer
   x = 12,566,958.24