Finding the Third Proportional to 3,971,248 and 8,670,768

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971,248 : 8,670,768 = 8,670,768 : x
2. Step 2: Convert to fraction form
   3,971,248/8,670,768 = 8,670,768/x
3. Step 3: Cross multiply
   3,971,248x = 8,670,768 × 8,670,768
4. Step 4: Simplify right side
   3,971,248x = 75,182,217,709,824
5. Step 5: Solve for x
   x = 75,182,217,709,824/3,971,248
6. Step 6: Final answer
   x = 18,931,635.02