Finding the Third Proportional to 679,216 and 1,476,368

Step by Step Solution

1. Step 1: Write the proportion equation
   679,216 : 1,476,368 = 1,476,368 : x
2. Step 2: Convert to fraction form
   679,216/1,476,368 = 1,476,368/x
3. Step 3: Cross multiply
   679,216x = 1,476,368 × 1,476,368
4. Step 4: Simplify right side
   679,216x = 2,179,662,471,424
5. Step 5: Solve for x
   x = 2,179,662,471,424/679,216
6. Step 6: Final answer
   x = 3,209,085.87