Finding the Third Proportional to 3,621,228 and 7,865,238

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621,228 : 7,865,238 = 7,865,238 : x
2. Step 2: Convert to fraction form
   3,621,228/7,865,238 = 7,865,238/x
3. Step 3: Cross multiply
   3,621,228x = 7,865,238 × 7,865,238
4. Step 4: Simplify right side
   3,621,228x = 61,861,968,796,644
5. Step 5: Solve for x
   x = 61,861,968,796,644/3,621,228
6. Step 6: Final answer
   x = 17,083,146.60