Finding the Third Proportional to 2,520,837 and 5,531,489

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520,837 : 5,531,489 = 5,531,489 : x
2. Step 2: Convert to fraction form
   2,520,837/5,531,489 = 5,531,489/x
3. Step 3: Cross multiply
   2,520,837x = 5,531,489 × 5,531,489
4. Step 4: Simplify right side
   2,520,837x = 30,597,370,557,121
5. Step 5: Solve for x
   x = 30,597,370,557,121/2,520,837
6. Step 6: Final answer
   x = 12,137,782.24