Finding the Third Proportional to 2,143,384 and 4,623,306

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,384 : 4,623,306 = 4,623,306 : x
2. Step 2: Convert to fraction form
   2,143,384/4,623,306 = 4,623,306/x
3. Step 3: Cross multiply
   2,143,384x = 4,623,306 × 4,623,306
4. Step 4: Simplify right side
   2,143,384x = 21,374,958,369,636
5. Step 5: Solve for x
   x = 21,374,958,369,636/2,143,384
6. Step 6: Final answer
   x = 9,972,528.66