Finding the Third Proportional to 3,181,326 and 4,818,321

Step by Step Solution

1. Step 1: Write the proportion equation
   3,181,326 : 4,818,321 = 4,818,321 : x
2. Step 2: Convert to fraction form
   3,181,326/4,818,321 = 4,818,321/x
3. Step 3: Cross multiply
   3,181,326x = 4,818,321 × 4,818,321
4. Step 4: Simplify right side
   3,181,326x = 23,216,217,259,041
5. Step 5: Solve for x
   x = 23,216,217,259,041/3,181,326
6. Step 6: Final answer
   x = 7,297,654.27