Finding the Third Proportional to 3,704,400 and 8,117,172

Step by Step Solution

1. Step 1: Write the proportion equation
   3,704,400 : 8,117,172 = 8,117,172 : x
2. Step 2: Convert to fraction form
   3,704,400/8,117,172 = 8,117,172/x
3. Step 3: Cross multiply
   3,704,400x = 8,117,172 × 8,117,172
4. Step 4: Simplify right side
   3,704,400x = 65,888,481,277,584
5. Step 5: Solve for x
   x = 65,888,481,277,584/3,704,400
6. Step 6: Final answer
   x = 17,786,546.07