Finding the Third Proportional to 1,538,672 and 3,348,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,672 : 3,348,256 = 3,348,256 : x
2. Step 2: Convert to fraction form
   1,538,672/3,348,256 = 3,348,256/x
3. Step 3: Cross multiply
   1,538,672x = 3,348,256 × 3,348,256
4. Step 4: Simplify right side
   1,538,672x = 11,210,818,241,536
5. Step 5: Solve for x
   x = 11,210,818,241,536/1,538,672
6. Step 6: Final answer
   x = 7,286,035.13