Finding the Third Proportional to 1,276,592 and 1,890,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276,592 : 1,890,240 = 1,890,240 : x
2. Step 2: Convert to fraction form
   1,276,592/1,890,240 = 1,890,240/x
3. Step 3: Cross multiply
   1,276,592x = 1,890,240 × 1,890,240
4. Step 4: Simplify right side
   1,276,592x = 3,573,007,257,600
5. Step 5: Solve for x
   x = 3,573,007,257,600/1,276,592
6. Step 6: Final answer
   x = 2,798,863.90