Finding the Third Proportional to 3,644,172 and 7,974,784

Step by Step Solution

1. Step 1: Write the proportion equation
   3,644,172 : 7,974,784 = 7,974,784 : x
2. Step 2: Convert to fraction form
   3,644,172/7,974,784 = 7,974,784/x
3. Step 3: Cross multiply
   3,644,172x = 7,974,784 × 7,974,784
4. Step 4: Simplify right side
   3,644,172x = 63,597,179,846,656
5. Step 5: Solve for x
   x = 63,597,179,846,656/3,644,172
6. Step 6: Final answer
   x = 17,451,750.31