Finding the Third Proportional to 851,656 and 1,854,512

Step by Step Solution

1. Step 1: Write the proportion equation
   851,656 : 1,854,512 = 1,854,512 : x
2. Step 2: Convert to fraction form
   851,656/1,854,512 = 1,854,512/x
3. Step 3: Cross multiply
   851,656x = 1,854,512 × 1,854,512
4. Step 4: Simplify right side
   851,656x = 3,439,214,758,144
5. Step 5: Solve for x
   x = 3,439,214,758,144/851,656
6. Step 6: Final answer
   x = 4,038,267.51