Finding the Third Proportional to 3,669,465 and 8,290,245

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669,465 : 8,290,245 = 8,290,245 : x
2. Step 2: Convert to fraction form
   3,669,465/8,290,245 = 8,290,245/x
3. Step 3: Cross multiply
   3,669,465x = 8,290,245 × 8,290,245
4. Step 4: Simplify right side
   3,669,465x = 68,728,162,160,025
5. Step 5: Solve for x
   x = 68,728,162,160,025/3,669,465
6. Step 6: Final answer
   x = 18,729,750.02