Finding the Third Proportional to 1,628,743 and 3,509,931

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628,743 : 3,509,931 = 3,509,931 : x
2. Step 2: Convert to fraction form
   1,628,743/3,509,931 = 3,509,931/x
3. Step 3: Cross multiply
   1,628,743x = 3,509,931 × 3,509,931
4. Step 4: Simplify right side
   1,628,743x = 12,319,615,624,761
5. Step 5: Solve for x
   x = 12,319,615,624,761/1,628,743
6. Step 6: Final answer
   x = 7,563,879.40