Finding the Third Proportional to 679,222 and 1,476,380

Step by Step Solution

1. Step 1: Write the proportion equation
   679,222 : 1,476,380 = 1,476,380 : x
2. Step 2: Convert to fraction form
   679,222/1,476,380 = 1,476,380/x
3. Step 3: Cross multiply
   679,222x = 1,476,380 × 1,476,380
4. Step 4: Simplify right side
   679,222x = 2,179,697,904,400
5. Step 5: Solve for x
   x = 2,179,697,904,400/679,222
6. Step 6: Final answer
   x = 3,209,109.69