Finding the Third Proportional to 853,588 and 1,867,880

Step by Step Solution

1. Step 1: Write the proportion equation
   853,588 : 1,867,880 = 1,867,880 : x
2. Step 2: Convert to fraction form
   853,588/1,867,880 = 1,867,880/x
3. Step 3: Cross multiply
   853,588x = 1,867,880 × 1,867,880
4. Step 4: Simplify right side
   853,588x = 3,488,975,694,400
5. Step 5: Solve for x
   x = 3,488,975,694,400/853,588
6. Step 6: Final answer
   x = 4,087,423.55