Finding the Third Proportional to 1,939,788 and 4,189,320

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,788 : 4,189,320 = 4,189,320 : x
2. Step 2: Convert to fraction form
   1,939,788/4,189,320 = 4,189,320/x
3. Step 3: Cross multiply
   1,939,788x = 4,189,320 × 4,189,320
4. Step 4: Simplify right side
   1,939,788x = 17,550,402,062,400
5. Step 5: Solve for x
   x = 17,550,402,062,400/1,939,788
6. Step 6: Final answer
   x = 9,047,587.71