Finding the Third Proportional to 3,819,136 and 8,319,968

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819,136 : 8,319,968 = 8,319,968 : x
2. Step 2: Convert to fraction form
   3,819,136/8,319,968 = 8,319,968/x
3. Step 3: Cross multiply
   3,819,136x = 8,319,968 × 8,319,968
4. Step 4: Simplify right side
   3,819,136x = 69,221,867,521,024
5. Step 5: Solve for x
   x = 69,221,867,521,024/3,819,136
6. Step 6: Final answer
   x = 18,125,007.21