Finding the Third Proportional to 765,288 and 1,668,363

Step by Step Solution

1. Step 1: Write the proportion equation
   765,288 : 1,668,363 = 1,668,363 : x
2. Step 2: Convert to fraction form
   765,288/1,668,363 = 1,668,363/x
3. Step 3: Cross multiply
   765,288x = 1,668,363 × 1,668,363
4. Step 4: Simplify right side
   765,288x = 2,783,435,099,769
5. Step 5: Solve for x
   x = 2,783,435,099,769/765,288
6. Step 6: Final answer
   x = 3,637,107.99