Finding the Third Proportional to 1,858,278 and 2,813,130

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,278 : 2,813,130 = 2,813,130 : x
2. Step 2: Convert to fraction form
   1,858,278/2,813,130 = 2,813,130/x
3. Step 3: Cross multiply
   1,858,278x = 2,813,130 × 2,813,130
4. Step 4: Simplify right side
   1,858,278x = 7,913,700,396,900
5. Step 5: Solve for x
   x = 7,913,700,396,900/1,858,278
6. Step 6: Final answer
   x = 4,258,620.29