Finding the Third Proportional to 2,116,318 and 3,179,305

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,318 : 3,179,305 = 3,179,305 : x
2. Step 2: Convert to fraction form
   2,116,318/3,179,305 = 3,179,305/x
3. Step 3: Cross multiply
   2,116,318x = 3,179,305 × 3,179,305
4. Step 4: Simplify right side
   2,116,318x = 10,107,980,283,025
5. Step 5: Solve for x
   x = 10,107,980,283,025/2,116,318
6. Step 6: Final answer
   x = 4,776,210.51