Finding the Third Proportional to 1,276,576 and 1,890,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276,576 : 1,890,216 = 1,890,216 : x
2. Step 2: Convert to fraction form
   1,276,576/1,890,216 = 1,890,216/x
3. Step 3: Cross multiply
   1,276,576x = 1,890,216 × 1,890,216
4. Step 4: Simplify right side
   1,276,576x = 3,572,916,526,656
5. Step 5: Solve for x
   x = 3,572,916,526,656/1,276,576
6. Step 6: Final answer
   x = 2,798,827.90