Finding the Third Proportional to 817,870 and 1,241,521

Step by Step Solution

1. Step 1: Write the proportion equation
   817,870 : 1,241,521 = 1,241,521 : x
2. Step 2: Convert to fraction form
   817,870/1,241,521 = 1,241,521/x
3. Step 3: Cross multiply
   817,870x = 1,241,521 × 1,241,521
4. Step 4: Simplify right side
   817,870x = 1,541,374,393,441
5. Step 5: Solve for x
   x = 1,541,374,393,441/817,870
6. Step 6: Final answer
   x = 1,884,620.29