Finding the Third Proportional to 1,266,497 and 1,866,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,266,497 : 1,866,256 = 1,866,256 : x
2. Step 2: Convert to fraction form
   1,266,497/1,866,256 = 1,866,256/x
3. Step 3: Cross multiply
   1,266,497x = 1,866,256 × 1,866,256
4. Step 4: Simplify right side
   1,266,497x = 3,482,911,457,536
5. Step 5: Solve for x
   x = 3,482,911,457,536/1,266,497
6. Step 6: Final answer
   x = 2,750,035.30