Finding the Third Proportional to 1,178,196 and 1,813,221

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,196 : 1,813,221 = 1,813,221 : x
2. Step 2: Convert to fraction form
   1,178,196/1,813,221 = 1,813,221/x
3. Step 3: Cross multiply
   1,178,196x = 1,813,221 × 1,813,221
4. Step 4: Simplify right side
   1,178,196x = 3,287,770,394,841
5. Step 5: Solve for x
   x = 3,287,770,394,841/1,178,196
6. Step 6: Final answer
   x = 2,790,512.27