Finding the Third Proportional to 853,598 and 1,867,900

Step by Step Solution

1. Step 1: Write the proportion equation
   853,598 : 1,867,900 = 1,867,900 : x
2. Step 2: Convert to fraction form
   853,598/1,867,900 = 1,867,900/x
3. Step 3: Cross multiply
   853,598x = 1,867,900 × 1,867,900
4. Step 4: Simplify right side
   853,598x = 3,489,050,410,000
5. Step 5: Solve for x
   x = 3,489,050,410,000/853,598
6. Step 6: Final answer
   x = 4,087,463.20