Finding the Third Proportional to 3,998,304 and 8,706,528

Step by Step Solution

1. Step 1: Write the proportion equation
   3,998,304 : 8,706,528 = 8,706,528 : x
2. Step 2: Convert to fraction form
   3,998,304/8,706,528 = 8,706,528/x
3. Step 3: Cross multiply
   3,998,304x = 8,706,528 × 8,706,528
4. Step 4: Simplify right side
   3,998,304x = 75,803,629,814,784
5. Step 5: Solve for x
   x = 75,803,629,814,784/3,998,304
6. Step 6: Final answer
   x = 18,958,946.05