Finding the Third Proportional to 1,553,621 and 3,323,116

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,621 : 3,323,116 = 3,323,116 : x
2. Step 2: Convert to fraction form
   1,553,621/3,323,116 = 3,323,116/x
3. Step 3: Cross multiply
   1,553,621x = 3,323,116 × 3,323,116
4. Step 4: Simplify right side
   1,553,621x = 11,043,099,949,456
5. Step 5: Solve for x
   x = 11,043,099,949,456/1,553,621
6. Step 6: Final answer
   x = 7,107,975.46