Finding the Third Proportional to 1,258,488 and 1,887,864

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,488 : 1,887,864 = 1,887,864 : x
2. Step 2: Convert to fraction form
   1,258,488/1,887,864 = 1,887,864/x
3. Step 3: Cross multiply
   1,258,488x = 1,887,864 × 1,887,864
4. Step 4: Simplify right side
   1,258,488x = 3,564,030,482,496
5. Step 5: Solve for x
   x = 3,564,030,482,496/1,258,488
6. Step 6: Final answer
   x = 2,831,994.01