Finding the Third Proportional to 2,216,620 and 4,775,185

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216,620 : 4,775,185 = 4,775,185 : x
2. Step 2: Convert to fraction form
   2,216,620/4,775,185 = 4,775,185/x
3. Step 3: Cross multiply
   2,216,620x = 4,775,185 × 4,775,185
4. Step 4: Simplify right side
   2,216,620x = 22,802,391,784,225
5. Step 5: Solve for x
   x = 22,802,391,784,225/2,216,620
6. Step 6: Final answer
   x = 10,287,009.85