Finding the Third Proportional to 782,940 and 1,668,426

Step by Step Solution

1. Step 1: Write the proportion equation
   782,940 : 1,668,426 = 1,668,426 : x
2. Step 2: Convert to fraction form
   782,940/1,668,426 = 1,668,426/x
3. Step 3: Cross multiply
   782,940x = 1,668,426 × 1,668,426
4. Step 4: Simplify right side
   782,940x = 2,783,645,317,476
5. Step 5: Solve for x
   x = 2,783,645,317,476/782,940
6. Step 6: Final answer
   x = 3,555,375.02