Finding the Third Proportional to 3,390,992 and 5,121,048

Step by Step Solution

1. Step 1: Write the proportion equation
   3,390,992 : 5,121,048 = 5,121,048 : x
2. Step 2: Convert to fraction form
   3,390,992/5,121,048 = 5,121,048/x
3. Step 3: Cross multiply
   3,390,992x = 5,121,048 × 5,121,048
4. Step 4: Simplify right side
   3,390,992x = 26,225,132,618,304
5. Step 5: Solve for x
   x = 26,225,132,618,304/3,390,992
6. Step 6: Final answer
   x = 7,733,764.23