Finding the Third Proportional to 5,082,840 and 10,436,260

Step by Step Solution

1. Step 1: Write the proportion equation
   5,082,840 : 10,436,260 = 10,436,260 : x
2. Step 2: Convert to fraction form
   5,082,840/10,436,260 = 10,436,260/x
3. Step 3: Cross multiply
   5,082,840x = 10,436,260 × 10,436,260
4. Step 4: Simplify right side
   5,082,840x = 108,915,522,787,600
5. Step 5: Solve for x
   x = 108,915,522,787,600/5,082,840
6. Step 6: Final answer
   x = 21,428,084.06