Finding the Third Proportional to 5,519,342 and 8,225,170

Step by Step Solution

1. Step 1: Write the proportion equation
   5,519,342 : 8,225,170 = 8,225,170 : x
2. Step 2: Convert to fraction form
   5,519,342/8,225,170 = 8,225,170/x
3. Step 3: Cross multiply
   5,519,342x = 8,225,170 × 8,225,170
4. Step 4: Simplify right side
   5,519,342x = 67,653,421,528,900
5. Step 5: Solve for x
   x = 67,653,421,528,900/5,519,342
6. Step 6: Final answer
   x = 12,257,515.76