Finding the Third Proportional to 830,478 and 1,282,521

Step by Step Solution

1. Step 1: Write the proportion equation
   830,478 : 1,282,521 = 1,282,521 : x
2. Step 2: Convert to fraction form
   830,478/1,282,521 = 1,282,521/x
3. Step 3: Cross multiply
   830,478x = 1,282,521 × 1,282,521
4. Step 4: Simplify right side
   830,478x = 1,644,860,115,441
5. Step 5: Solve for x
   x = 1,644,860,115,441/830,478
6. Step 6: Final answer
   x = 1,980,618.53