Finding the Third Proportional to 815,142 and 1,787,748

Step by Step Solution

1. Step 1: Write the proportion equation
   815,142 : 1,787,748 = 1,787,748 : x
2. Step 2: Convert to fraction form
   815,142/1,787,748 = 1,787,748/x
3. Step 3: Cross multiply
   815,142x = 1,787,748 × 1,787,748
4. Step 4: Simplify right side
   815,142x = 3,196,042,911,504
5. Step 5: Solve for x
   x = 3,196,042,911,504/815,142
6. Step 6: Final answer
   x = 3,920,841.90