Finding the Third Proportional to 433,320 and 669,648

Step by Step Solution

1. Step 1: Write the proportion equation
   433,320 : 669,648 = 669,648 : x
2. Step 2: Convert to fraction form
   433,320/669,648 = 669,648/x
3. Step 3: Cross multiply
   433,320x = 669,648 × 669,648
4. Step 4: Simplify right side
   433,320x = 448,428,443,904
5. Step 5: Solve for x
   x = 448,428,443,904/433,320
6. Step 6: Final answer
   x = 1,034,866.71