Finding the Third Proportional to 1,538,408 and 3,366,364

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,408 : 3,366,364 = 3,366,364 : x
2. Step 2: Convert to fraction form
   1,538,408/3,366,364 = 3,366,364/x
3. Step 3: Cross multiply
   1,538,408x = 3,366,364 × 3,366,364
4. Step 4: Simplify right side
   1,538,408x = 11,332,406,580,496
5. Step 5: Solve for x
   x = 11,332,406,580,496/1,538,408
6. Step 6: Final answer
   x = 7,366,320.63