Finding the Third Proportional to 3,531,616 and 7,622,780

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531,616 : 7,622,780 = 7,622,780 : x
2. Step 2: Convert to fraction form
   3,531,616/7,622,780 = 7,622,780/x
3. Step 3: Cross multiply
   3,531,616x = 7,622,780 × 7,622,780
4. Step 4: Simplify right side
   3,531,616x = 58,106,774,928,400
5. Step 5: Solve for x
   x = 58,106,774,928,400/3,531,616
6. Step 6: Final answer
   x = 16,453,310.59