Finding the Third Proportional to 3,910,304 and 8,178,126

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,304 : 8,178,126 = 8,178,126 : x
2. Step 2: Convert to fraction form
   3,910,304/8,178,126 = 8,178,126/x
3. Step 3: Cross multiply
   3,910,304x = 8,178,126 × 8,178,126
4. Step 4: Simplify right side
   3,910,304x = 66,881,744,871,876
5. Step 5: Solve for x
   x = 66,881,744,871,876/3,910,304
6. Step 6: Final answer
   x = 17,103,975.77