Finding the Third Proportional to 853,088 and 1,866,880

Step by Step Solution

1. Step 1: Write the proportion equation
   853,088 : 1,866,880 = 1,866,880 : x
2. Step 2: Convert to fraction form
   853,088/1,866,880 = 1,866,880/x
3. Step 3: Cross multiply
   853,088x = 1,866,880 × 1,866,880
4. Step 4: Simplify right side
   853,088x = 3,485,240,934,400
5. Step 5: Solve for x
   x = 3,485,240,934,400/853,088
6. Step 6: Final answer
   x = 4,085,441.28