Finding the Third Proportional to 4,082,472 and 8,788,968

Step by Step Solution

1. Step 1: Write the proportion equation
   4,082,472 : 8,788,968 = 8,788,968 : x
2. Step 2: Convert to fraction form
   4,082,472/8,788,968 = 8,788,968/x
3. Step 3: Cross multiply
   4,082,472x = 8,788,968 × 8,788,968
4. Step 4: Simplify right side
   4,082,472x = 77,245,958,505,024
5. Step 5: Solve for x
   x = 77,245,958,505,024/4,082,472
6. Step 6: Final answer
   x = 18,921,368.84