Finding the Third Proportional to 2,219,665 and 4,776,210

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219,665 : 4,776,210 = 4,776,210 : x
2. Step 2: Convert to fraction form
   2,219,665/4,776,210 = 4,776,210/x
3. Step 3: Cross multiply
   2,219,665x = 4,776,210 × 4,776,210
4. Step 4: Simplify right side
   2,219,665x = 22,812,181,964,100
5. Step 5: Solve for x
   x = 22,812,181,964,100/2,219,665
6. Step 6: Final answer
   x = 10,277,308.50