Finding the Third Proportional to 1,986,738 and 4,290,984

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986,738 : 4,290,984 = 4,290,984 : x
2. Step 2: Convert to fraction form
   1,986,738/4,290,984 = 4,290,984/x
3. Step 3: Cross multiply
   1,986,738x = 4,290,984 × 4,290,984
4. Step 4: Simplify right side
   1,986,738x = 18,412,543,688,256
5. Step 5: Solve for x
   x = 18,412,543,688,256/1,986,738
6. Step 6: Final answer
   x = 9,267,726.14