Finding the Third Proportional to 1,302,066 and 1,990,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,302,066 : 1,990,620 = 1,990,620 : x
2. Step 2: Convert to fraction form
   1,302,066/1,990,620 = 1,990,620/x
3. Step 3: Cross multiply
   1,302,066x = 1,990,620 × 1,990,620
4. Step 4: Simplify right side
   1,302,066x = 3,962,567,984,400
5. Step 5: Solve for x
   x = 3,962,567,984,400/1,302,066
6. Step 6: Final answer
   x = 3,043,292.72