Finding the Third Proportional to 1,997,288 and 4,274,512

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997,288 : 4,274,512 = 4,274,512 : x
2. Step 2: Convert to fraction form
   1,997,288/4,274,512 = 4,274,512/x
3. Step 3: Cross multiply
   1,997,288x = 4,274,512 × 4,274,512
4. Step 4: Simplify right side
   1,997,288x = 18,271,452,838,144
5. Step 5: Solve for x
   x = 18,271,452,838,144/1,997,288
6. Step 6: Final answer
   x = 9,148,131.29