Finding the Third Proportional to 765,366 and 1,668,516

Step by Step Solution

1. Step 1: Write the proportion equation
   765,366 : 1,668,516 = 1,668,516 : x
2. Step 2: Convert to fraction form
   765,366/1,668,516 = 1,668,516/x
3. Step 3: Cross multiply
   765,366x = 1,668,516 × 1,668,516
4. Step 4: Simplify right side
   765,366x = 2,783,945,642,256
5. Step 5: Solve for x
   x = 2,783,945,642,256/765,366
6. Step 6: Final answer
   x = 3,637,404.38