Finding the Third Proportional to 851,584 and 1,859,912

Step by Step Solution

1. Step 1: Write the proportion equation
   851,584 : 1,859,912 = 1,859,912 : x
2. Step 2: Convert to fraction form
   851,584/1,859,912 = 1,859,912/x
3. Step 3: Cross multiply
   851,584x = 1,859,912 × 1,859,912
4. Step 4: Simplify right side
   851,584x = 3,459,272,647,744
5. Step 5: Solve for x
   x = 3,459,272,647,744/851,584
6. Step 6: Final answer
   x = 4,062,162.57