Finding the Third Proportional to 863,790 and 2,017,926

Step by Step Solution

1. Step 1: Write the proportion equation
   863,790 : 2,017,926 = 2,017,926 : x
2. Step 2: Convert to fraction form
   863,790/2,017,926 = 2,017,926/x
3. Step 3: Cross multiply
   863,790x = 2,017,926 × 2,017,926
4. Step 4: Simplify right side
   863,790x = 4,072,025,341,476
5. Step 5: Solve for x
   x = 4,072,025,341,476/863,790
6. Step 6: Final answer
   x = 4,714,138.09