Finding the Third Proportional to 853,058 and 1,866,820

Step by Step Solution

1. Step 1: Write the proportion equation
   853,058 : 1,866,820 = 1,866,820 : x
2. Step 2: Convert to fraction form
   853,058/1,866,820 = 1,866,820/x
3. Step 3: Cross multiply
   853,058x = 1,866,820 × 1,866,820
4. Step 4: Simplify right side
   853,058x = 3,485,016,912,400
5. Step 5: Solve for x
   x = 3,485,016,912,400/853,058
6. Step 6: Final answer
   x = 4,085,322.35