Finding the Third Proportional to 1,276,431 and 1,889,415

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276,431 : 1,889,415 = 1,889,415 : x
2. Step 2: Convert to fraction form
   1,276,431/1,889,415 = 1,889,415/x
3. Step 3: Cross multiply
   1,276,431x = 1,889,415 × 1,889,415
4. Step 4: Simplify right side
   1,276,431x = 3,569,889,042,225
5. Step 5: Solve for x
   x = 3,569,889,042,225/1,276,431
6. Step 6: Final answer
   x = 2,796,774.01