Finding the Third Proportional to 2,321,678 and 4,878,364

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321,678 : 4,878,364 = 4,878,364 : x
2. Step 2: Convert to fraction form
   2,321,678/4,878,364 = 4,878,364/x
3. Step 3: Cross multiply
   2,321,678x = 4,878,364 × 4,878,364
4. Step 4: Simplify right side
   2,321,678x = 23,798,435,316,496
5. Step 5: Solve for x
   x = 23,798,435,316,496/2,321,678
6. Step 6: Final answer
   x = 10,250,532.29