Finding the Third Proportional to 859,738 and 1,868,738

Step by Step Solution

1. Step 1: Write the proportion equation
   859,738 : 1,868,738 = 1,868,738 : x
2. Step 2: Convert to fraction form
   859,738/1,868,738 = 1,868,738/x
3. Step 3: Cross multiply
   859,738x = 1,868,738 × 1,868,738
4. Step 4: Simplify right side
   859,738x = 3,492,181,712,644
5. Step 5: Solve for x
   x = 3,492,181,712,644/859,738
6. Step 6: Final answer
   x = 4,061,913.88