Finding the Third Proportional to 834,138 and 1,821,180

Step by Step Solution

1. Step 1: Write the proportion equation
   834,138 : 1,821,180 = 1,821,180 : x
2. Step 2: Convert to fraction form
   834,138/1,821,180 = 1,821,180/x
3. Step 3: Cross multiply
   834,138x = 1,821,180 × 1,821,180
4. Step 4: Simplify right side
   834,138x = 3,316,696,592,400
5. Step 5: Solve for x
   x = 3,316,696,592,400/834,138
6. Step 6: Final answer
   x = 3,976,196.50