Finding the Third Proportional to 5,239,272 and 7,826,556

Step by Step Solution

1. Step 1: Write the proportion equation
   5,239,272 : 7,826,556 = 7,826,556 : x
2. Step 2: Convert to fraction form
   5,239,272/7,826,556 = 7,826,556/x
3. Step 3: Cross multiply
   5,239,272x = 7,826,556 × 7,826,556
4. Step 4: Simplify right side
   5,239,272x = 61,254,978,821,136
5. Step 5: Solve for x
   x = 61,254,978,821,136/5,239,272
6. Step 6: Final answer
   x = 11,691,505.77