Finding the Third Proportional to 4,878,436 and 7,246,878

Step by Step Solution

1. Step 1: Write the proportion equation
   4,878,436 : 7,246,878 = 7,246,878 : x
2. Step 2: Convert to fraction form
   4,878,436/7,246,878 = 7,246,878/x
3. Step 3: Cross multiply
   4,878,436x = 7,246,878 × 7,246,878
4. Step 4: Simplify right side
   4,878,436x = 52,517,240,746,884
5. Step 5: Solve for x
   x = 52,517,240,746,884/4,878,436
6. Step 6: Final answer
   x = 10,765,179.81