Finding the Third Proportional to 765,300 and 1,668,388

Step by Step Solution

1. Step 1: Write the proportion equation
   765,300 : 1,668,388 = 1,668,388 : x
2. Step 2: Convert to fraction form
   765,300/1,668,388 = 1,668,388/x
3. Step 3: Cross multiply
   765,300x = 1,668,388 × 1,668,388
4. Step 4: Simplify right side
   765,300x = 2,783,518,518,544
5. Step 5: Solve for x
   x = 2,783,518,518,544/765,300
6. Step 6: Final answer
   x = 3,637,159.96