Finding the Third Proportional to 765,322 and 1,668,428

Step by Step Solution

1. Step 1: Write the proportion equation
   765,322 : 1,668,428 = 1,668,428 : x
2. Step 2: Convert to fraction form
   765,322/1,668,428 = 1,668,428/x
3. Step 3: Cross multiply
   765,322x = 1,668,428 × 1,668,428
4. Step 4: Simplify right side
   765,322x = 2,783,651,991,184
5. Step 5: Solve for x
   x = 2,783,651,991,184/765,322
6. Step 6: Final answer
   x = 3,637,229.81