Finding the Third Proportional to 1,997,216 and 4,274,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997,216 : 4,274,368 = 4,274,368 : x
2. Step 2: Convert to fraction form
   1,997,216/4,274,368 = 4,274,368/x
3. Step 3: Cross multiply
   1,997,216x = 4,274,368 × 4,274,368
4. Step 4: Simplify right side
   1,997,216x = 18,270,221,799,424
5. Step 5: Solve for x
   x = 18,270,221,799,424/1,997,216
6. Step 6: Final answer
   x = 9,147,844.70