Finding the Third Proportional to 1,378,086 and 2,955,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,086 : 2,955,420 = 2,955,420 : x
2. Step 2: Convert to fraction form
   1,378,086/2,955,420 = 2,955,420/x
3. Step 3: Cross multiply
   1,378,086x = 2,955,420 × 2,955,420
4. Step 4: Simplify right side
   1,378,086x = 8,734,507,376,400
5. Step 5: Solve for x
   x = 8,734,507,376,400/1,378,086
6. Step 6: Final answer
   x = 6,338,143.90