Finding the Third Proportional to 1,557,153 and 3,378,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557,153 : 3,378,690 = 3,378,690 : x
2. Step 2: Convert to fraction form
   1,557,153/3,378,690 = 3,378,690/x
3. Step 3: Cross multiply
   1,557,153x = 3,378,690 × 3,378,690
4. Step 4: Simplify right side
   1,557,153x = 11,415,546,116,100
5. Step 5: Solve for x
   x = 11,415,546,116,100/1,557,153
6. Step 6: Final answer
   x = 7,331,036.91