Finding the Third Proportional to 3,499,570 and 7,278,500

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499,570 : 7,278,500 = 7,278,500 : x
2. Step 2: Convert to fraction form
   3,499,570/7,278,500 = 7,278,500/x
3. Step 3: Cross multiply
   3,499,570x = 7,278,500 × 7,278,500
4. Step 4: Simplify right side
   3,499,570x = 52,976,562,250,000
5. Step 5: Solve for x
   x = 52,976,562,250,000/3,499,570
6. Step 6: Final answer
   x = 15,138,020.46