Finding the Third Proportional to 1,474,318 and 3,215,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,474,318 : 3,215,420 = 3,215,420 : x
2. Step 2: Convert to fraction form
   1,474,318/3,215,420 = 3,215,420/x
3. Step 3: Cross multiply
   1,474,318x = 3,215,420 × 3,215,420
4. Step 4: Simplify right side
   1,474,318x = 10,338,925,776,400
5. Step 5: Solve for x
   x = 10,338,925,776,400/1,474,318
6. Step 6: Final answer
   x = 7,012,683.68