Finding the Third Proportional to 853,216 and 1,867,136

Step by Step Solution

1. Step 1: Write the proportion equation
   853,216 : 1,867,136 = 1,867,136 : x
2. Step 2: Convert to fraction form
   853,216/1,867,136 = 1,867,136/x
3. Step 3: Cross multiply
   853,216x = 1,867,136 × 1,867,136
4. Step 4: Simplify right side
   853,216x = 3,486,196,842,496
5. Step 5: Solve for x
   x = 3,486,196,842,496/853,216
6. Step 6: Final answer
   x = 4,085,948.74