Finding the Third Proportional to 3,490,416 and 5,120,700

Step by Step Solution

1. Step 1: Write the proportion equation
   3,490,416 : 5,120,700 = 5,120,700 : x
2. Step 2: Convert to fraction form
   3,490,416/5,120,700 = 5,120,700/x
3. Step 3: Cross multiply
   3,490,416x = 5,120,700 × 5,120,700
4. Step 4: Simplify right side
   3,490,416x = 26,221,568,490,000
5. Step 5: Solve for x
   x = 26,221,568,490,000/3,490,416
6. Step 6: Final answer
   x = 7,512,447.94