Finding the Third Proportional to 1,259,180 and 1,899,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259,180 : 1,899,312 = 1,899,312 : x
2. Step 2: Convert to fraction form
   1,259,180/1,899,312 = 1,899,312/x
3. Step 3: Cross multiply
   1,259,180x = 1,899,312 × 1,899,312
4. Step 4: Simplify right side
   1,259,180x = 3,607,386,073,344
5. Step 5: Solve for x
   x = 3,607,386,073,344/1,259,180
6. Step 6: Final answer
   x = 2,864,869.26