Finding the Third Proportional to 1,380,850 and 1,865,619

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,850 : 1,865,619 = 1,865,619 : x
2. Step 2: Convert to fraction form
   1,380,850/1,865,619 = 1,865,619/x
3. Step 3: Cross multiply
   1,380,850x = 1,865,619 × 1,865,619
4. Step 4: Simplify right side
   1,380,850x = 3,480,534,253,161
5. Step 5: Solve for x
   x = 3,480,534,253,161/1,380,850
6. Step 6: Final answer
   x = 2,520,573.74