Finding the Third Proportional to 1,724,738 and 3,628,221

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724,738 : 3,628,221 = 3,628,221 : x
2. Step 2: Convert to fraction form
   1,724,738/3,628,221 = 3,628,221/x
3. Step 3: Cross multiply
   1,724,738x = 3,628,221 × 3,628,221
4. Step 4: Simplify right side
   1,724,738x = 13,163,987,624,841
5. Step 5: Solve for x
   x = 13,163,987,624,841/1,724,738
6. Step 6: Final answer
   x = 7,632,456.42