Finding the Third Proportional to 1,992,603 and 4,126,990

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992,603 : 4,126,990 = 4,126,990 : x
2. Step 2: Convert to fraction form
   1,992,603/4,126,990 = 4,126,990/x
3. Step 3: Cross multiply
   1,992,603x = 4,126,990 × 4,126,990
4. Step 4: Simplify right side
   1,992,603x = 17,032,046,460,100
5. Step 5: Solve for x
   x = 17,032,046,460,100/1,992,603
6. Step 6: Final answer
   x = 8,547,636.66