Finding the Third Proportional to 4,277,564 and 8,908,968

Step by Step Solution

1. Step 1: Write the proportion equation
   4,277,564 : 8,908,968 = 8,908,968 : x
2. Step 2: Convert to fraction form
   4,277,564/8,908,968 = 8,908,968/x
3. Step 3: Cross multiply
   4,277,564x = 8,908,968 × 8,908,968
4. Step 4: Simplify right side
   4,277,564x = 79,369,710,825,024
5. Step 5: Solve for x
   x = 79,369,710,825,024/4,277,564
6. Step 6: Final answer
   x = 18,554,885.64