Finding the Third Proportional to 3,431,674 and 7,319,330

Step by Step Solution

1. Step 1: Write the proportion equation
   3,431,674 : 7,319,330 = 7,319,330 : x
2. Step 2: Convert to fraction form
   3,431,674/7,319,330 = 7,319,330/x
3. Step 3: Cross multiply
   3,431,674x = 7,319,330 × 7,319,330
4. Step 4: Simplify right side
   3,431,674x = 53,572,591,648,900
5. Step 5: Solve for x
   x = 53,572,591,648,900/3,431,674
6. Step 6: Final answer
   x = 15,611,212.38