Finding the Third Proportional to 1,241,838 and 1,821,870

Step by Step Solution

1. Step 1: Write the proportion equation
   1,241,838 : 1,821,870 = 1,821,870 : x
2. Step 2: Convert to fraction form
   1,241,838/1,821,870 = 1,821,870/x
3. Step 3: Cross multiply
   1,241,838x = 1,821,870 × 1,821,870
4. Step 4: Simplify right side
   1,241,838x = 3,319,210,296,900
5. Step 5: Solve for x
   x = 3,319,210,296,900/1,241,838
6. Step 6: Final answer
   x = 2,672,820.69