Finding the Third Proportional to 1,418,546 and 3,078,220

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,546 : 3,078,220 = 3,078,220 : x
2. Step 2: Convert to fraction form
   1,418,546/3,078,220 = 3,078,220/x
3. Step 3: Cross multiply
   1,418,546x = 3,078,220 × 3,078,220
4. Step 4: Simplify right side
   1,418,546x = 9,475,438,368,400
5. Step 5: Solve for x
   x = 9,475,438,368,400/1,418,546
6. Step 6: Final answer
   x = 6,679,683.54