Finding the Third Proportional to 853,688 and 1,864,816

Step by Step Solution

1. Step 1: Write the proportion equation
   853,688 : 1,864,816 = 1,864,816 : x
2. Step 2: Convert to fraction form
   853,688/1,864,816 = 1,864,816/x
3. Step 3: Cross multiply
   853,688x = 1,864,816 × 1,864,816
4. Step 4: Simplify right side
   853,688x = 3,477,538,713,856
5. Step 5: Solve for x
   x = 3,477,538,713,856/853,688
6. Step 6: Final answer
   x = 4,073,547.61