Finding the Third Proportional to 3,647,288 and 8,443,528

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647,288 : 8,443,528 = 8,443,528 : x
2. Step 2: Convert to fraction form
   3,647,288/8,443,528 = 8,443,528/x
3. Step 3: Cross multiply
   3,647,288x = 8,443,528 × 8,443,528
4. Step 4: Simplify right side
   3,647,288x = 71,293,165,086,784
5. Step 5: Solve for x
   x = 71,293,165,086,784/3,647,288
6. Step 6: Final answer
   x = 19,546,897.61