Finding the Third Proportional to 1,940,362 and 4,220,485

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940,362 : 4,220,485 = 4,220,485 : x
2. Step 2: Convert to fraction form
   1,940,362/4,220,485 = 4,220,485/x
3. Step 3: Cross multiply
   1,940,362x = 4,220,485 × 4,220,485
4. Step 4: Simplify right side
   1,940,362x = 17,812,493,635,225
5. Step 5: Solve for x
   x = 17,812,493,635,225/1,940,362
6. Step 6: Final answer
   x = 9,179,984.78