Finding the Third Proportional to 1,392,588 and 1,878,930

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,588 : 1,878,930 = 1,878,930 : x
2. Step 2: Convert to fraction form
   1,392,588/1,878,930 = 1,878,930/x
3. Step 3: Cross multiply
   1,392,588x = 1,878,930 × 1,878,930
4. Step 4: Simplify right side
   1,392,588x = 3,530,377,944,900
5. Step 5: Solve for x
   x = 3,530,377,944,900/1,392,588
6. Step 6: Final answer
   x = 2,535,120.18