Finding the Third Proportional to 1,986,748 and 4,290,997

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986,748 : 4,290,997 = 4,290,997 : x
2. Step 2: Convert to fraction form
   1,986,748/4,290,997 = 4,290,997/x
3. Step 3: Cross multiply
   1,986,748x = 4,290,997 × 4,290,997
4. Step 4: Simplify right side
   1,986,748x = 18,412,655,254,009
5. Step 5: Solve for x
   x = 18,412,655,254,009/1,986,748
6. Step 6: Final answer
   x = 9,267,735.64