Finding the Third Proportional to 1,911,203 and 4,200,073

Step by Step Solution

1. Step 1: Write the proportion equation
   1,911,203 : 4,200,073 = 4,200,073 : x
2. Step 2: Convert to fraction form
   1,911,203/4,200,073 = 4,200,073/x
3. Step 3: Cross multiply
   1,911,203x = 4,200,073 × 4,200,073
4. Step 4: Simplify right side
   1,911,203x = 17,640,613,205,329
5. Step 5: Solve for x
   x = 17,640,613,205,329/1,911,203
6. Step 6: Final answer
   x = 9,230,109.62