Finding the Third Proportional to 661,642 and 1,435,306

Step by Step Solution

1. Step 1: Write the proportion equation
   661,642 : 1,435,306 = 1,435,306 : x
2. Step 2: Convert to fraction form
   661,642/1,435,306 = 1,435,306/x
3. Step 3: Cross multiply
   661,642x = 1,435,306 × 1,435,306
4. Step 4: Simplify right side
   661,642x = 2,060,103,313,636
5. Step 5: Solve for x
   x = 2,060,103,313,636/661,642
6. Step 6: Final answer
   x = 3,113,622.34