Finding the Third Proportional to 661,284 and 1,440,666

Step by Step Solution

1. Step 1: Write the proportion equation
   661,284 : 1,440,666 = 1,440,666 : x
2. Step 2: Convert to fraction form
   661,284/1,440,666 = 1,440,666/x
3. Step 3: Cross multiply
   661,284x = 1,440,666 × 1,440,666
4. Step 4: Simplify right side
   661,284x = 2,075,518,523,556
5. Step 5: Solve for x
   x = 2,075,518,523,556/661,284
6. Step 6: Final answer
   x = 3,138,619.00