Finding the Third Proportional to 2,616,789 and 5,550,639

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616,789 : 5,550,639 = 5,550,639 : x
2. Step 2: Convert to fraction form
   2,616,789/5,550,639 = 5,550,639/x
3. Step 3: Cross multiply
   2,616,789x = 5,550,639 × 5,550,639
4. Step 4: Simplify right side
   2,616,789x = 30,809,593,308,321
5. Step 5: Solve for x
   x = 30,809,593,308,321/2,616,789
6. Step 6: Final answer
   x = 11,773,816.42