Finding the Third Proportional to 3,426,176 and 7,378,560

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426,176 : 7,378,560 = 7,378,560 : x
2. Step 2: Convert to fraction form
   3,426,176/7,378,560 = 7,378,560/x
3. Step 3: Cross multiply
   3,426,176x = 7,378,560 × 7,378,560
4. Step 4: Simplify right side
   3,426,176x = 54,443,147,673,600
5. Step 5: Solve for x
   x = 54,443,147,673,600/3,426,176
6. Step 6: Final answer
   x = 15,890,353.47