Finding the Third Proportional to 1,858,272 and 2,813,121

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,272 : 2,813,121 = 2,813,121 : x
2. Step 2: Convert to fraction form
   1,858,272/2,813,121 = 2,813,121/x
3. Step 3: Cross multiply
   1,858,272x = 2,813,121 × 2,813,121
4. Step 4: Simplify right side
   1,858,272x = 7,913,649,760,641
5. Step 5: Solve for x
   x = 7,913,649,760,641/1,858,272
6. Step 6: Final answer
   x = 4,258,606.79