Finding the Third Proportional to 1,278,768 and 1,876,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,768 : 1,876,680 = 1,876,680 : x
2. Step 2: Convert to fraction form
   1,278,768/1,876,680 = 1,876,680/x
3. Step 3: Cross multiply
   1,278,768x = 1,876,680 × 1,876,680
4. Step 4: Simplify right side
   1,278,768x = 3,521,927,822,400
5. Step 5: Solve for x
   x = 3,521,927,822,400/1,278,768
6. Step 6: Final answer
   x = 2,754,156.99