Finding the Third Proportional to 1,223,342 and 2,878,286

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,342 : 2,878,286 = 2,878,286 : x
2. Step 2: Convert to fraction form
   1,223,342/2,878,286 = 2,878,286/x
3. Step 3: Cross multiply
   1,223,342x = 2,878,286 × 2,878,286
4. Step 4: Simplify right side
   1,223,342x = 8,284,530,297,796
5. Step 5: Solve for x
   x = 8,284,530,297,796/1,223,342
6. Step 6: Final answer
   x = 6,772,047.63