Finding the Third Proportional to 850,271 and 1,866,412

Step by Step Solution

1. Step 1: Write the proportion equation
   850,271 : 1,866,412 = 1,866,412 : x
2. Step 2: Convert to fraction form
   850,271/1,866,412 = 1,866,412/x
3. Step 3: Cross multiply
   850,271x = 1,866,412 × 1,866,412
4. Step 4: Simplify right side
   850,271x = 3,483,493,753,744
5. Step 5: Solve for x
   x = 3,483,493,753,744/850,271
6. Step 6: Final answer
   x = 4,096,921.75