Finding the Third Proportional to 815,512 and 1,705,382

Step by Step Solution

1. Step 1: Write the proportion equation
   815,512 : 1,705,382 = 1,705,382 : x
2. Step 2: Convert to fraction form
   815,512/1,705,382 = 1,705,382/x
3. Step 3: Cross multiply
   815,512x = 1,705,382 × 1,705,382
4. Step 4: Simplify right side
   815,512x = 2,908,327,765,924
5. Step 5: Solve for x
   x = 2,908,327,765,924/815,512
6. Step 6: Final answer
   x = 3,566,259.93