Finding the Third Proportional to 1,023,887 and 1,378,355

Step by Step Solution

1. Step 1: Write the proportion equation
   1,023,887 : 1,378,355 = 1,378,355 : x
2. Step 2: Convert to fraction form
   1,023,887/1,378,355 = 1,378,355/x
3. Step 3: Cross multiply
   1,023,887x = 1,378,355 × 1,378,355
4. Step 4: Simplify right side
   1,023,887x = 1,899,862,506,025
5. Step 5: Solve for x
   x = 1,899,862,506,025/1,023,887
6. Step 6: Final answer
   x = 1,855,539.24