Finding the Third Proportional to 1,378,800 and 2,059,857

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,800 : 2,059,857 = 2,059,857 : x
2. Step 2: Convert to fraction form
   1,378,800/2,059,857 = 2,059,857/x
3. Step 3: Cross multiply
   1,378,800x = 2,059,857 × 2,059,857
4. Step 4: Simplify right side
   1,378,800x = 4,243,010,860,449
5. Step 5: Solve for x
   x = 4,243,010,860,449/1,378,800
6. Step 6: Final answer
   x = 3,077,321.48