Finding the Third Proportional to 3,521,265 and 7,420,830

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521,265 : 7,420,830 = 7,420,830 : x
2. Step 2: Convert to fraction form
   3,521,265/7,420,830 = 7,420,830/x
3. Step 3: Cross multiply
   3,521,265x = 7,420,830 × 7,420,830
4. Step 4: Simplify right side
   3,521,265x = 55,068,717,888,900
5. Step 5: Solve for x
   x = 55,068,717,888,900/3,521,265
6. Step 6: Final answer
   x = 15,638,901.90