Finding the Third Proportional to 2,212,858 and 4,827,860

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212,858 : 4,827,860 = 4,827,860 : x
2. Step 2: Convert to fraction form
   2,212,858/4,827,860 = 4,827,860/x
3. Step 3: Cross multiply
   2,212,858x = 4,827,860 × 4,827,860
4. Step 4: Simplify right side
   2,212,858x = 23,308,232,179,600
5. Step 5: Solve for x
   x = 23,308,232,179,600/2,212,858
6. Step 6: Final answer
   x = 10,533,089.87