Finding the Third Proportional to 2,431,245 and 5,290,602

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,245 : 5,290,602 = 5,290,602 : x
2. Step 2: Convert to fraction form
   2,431,245/5,290,602 = 5,290,602/x
3. Step 3: Cross multiply
   2,431,245x = 5,290,602 × 5,290,602
4. Step 4: Simplify right side
   2,431,245x = 27,990,469,522,404
5. Step 5: Solve for x
   x = 27,990,469,522,404/2,431,245
6. Step 6: Final answer
   x = 11,512,813.20