Finding the Third Proportional to 2,143,383 and 4,623,290

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,383 : 4,623,290 = 4,623,290 : x
2. Step 2: Convert to fraction form
   2,143,383/4,623,290 = 4,623,290/x
3. Step 3: Cross multiply
   2,143,383x = 4,623,290 × 4,623,290
4. Step 4: Simplify right side
   2,143,383x = 21,374,810,424,100
5. Step 5: Solve for x
   x = 21,374,810,424,100/2,143,383
6. Step 6: Final answer
   x = 9,972,464.29