Finding the Third Proportional to 3,508,968 and 5,289,372

Step by Step Solution

1. Step 1: Write the proportion equation
   3,508,968 : 5,289,372 = 5,289,372 : x
2. Step 2: Convert to fraction form
   3,508,968/5,289,372 = 5,289,372/x
3. Step 3: Cross multiply
   3,508,968x = 5,289,372 × 5,289,372
4. Step 4: Simplify right side
   3,508,968x = 27,977,456,154,384
5. Step 5: Solve for x
   x = 27,977,456,154,384/3,508,968
6. Step 6: Final answer
   x = 7,973,129.47