Finding the Third Proportional to 1,474,312 and 3,215,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,474,312 : 3,215,408 = 3,215,408 : x
2. Step 2: Convert to fraction form
   1,474,312/3,215,408 = 3,215,408/x
3. Step 3: Cross multiply
   1,474,312x = 3,215,408 × 3,215,408
4. Step 4: Simplify right side
   1,474,312x = 10,338,848,606,464
5. Step 5: Solve for x
   x = 10,338,848,606,464/1,474,312
6. Step 6: Final answer
   x = 7,012,659.88