Finding the Third Proportional to 1,290,827 and 2,836,426

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,827 : 2,836,426 = 2,836,426 : x
2. Step 2: Convert to fraction form
   1,290,827/2,836,426 = 2,836,426/x
3. Step 3: Cross multiply
   1,290,827x = 2,836,426 × 2,836,426
4. Step 4: Simplify right side
   1,290,827x = 8,045,312,453,476
5. Step 5: Solve for x
   x = 8,045,312,453,476/1,290,827
6. Step 6: Final answer
   x = 6,232,680.64