Finding the Third Proportional to 1,086,269 and 1,643,384

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,269 : 1,643,384 = 1,643,384 : x
2. Step 2: Convert to fraction form
   1,086,269/1,643,384 = 1,643,384/x
3. Step 3: Cross multiply
   1,086,269x = 1,643,384 × 1,643,384
4. Step 4: Simplify right side
   1,086,269x = 2,700,710,971,456
5. Step 5: Solve for x
   x = 2,700,710,971,456/1,086,269
6. Step 6: Final answer
   x = 2,486,226.68