Finding the Third Proportional to 2,197,974 and 4,686,270

Step by Step Solution

1. Step 1: Write the proportion equation
   2,197,974 : 4,686,270 = 4,686,270 : x
2. Step 2: Convert to fraction form
   2,197,974/4,686,270 = 4,686,270/x
3. Step 3: Cross multiply
   2,197,974x = 4,686,270 × 4,686,270
4. Step 4: Simplify right side
   2,197,974x = 21,961,126,512,900
5. Step 5: Solve for x
   x = 21,961,126,512,900/2,197,974
6. Step 6: Final answer
   x = 9,991,531.53