Finding the Third Proportional to 672,720 and 1,038,824

Step by Step Solution

1. Step 1: Write the proportion equation
   672,720 : 1,038,824 = 1,038,824 : x
2. Step 2: Convert to fraction form
   672,720/1,038,824 = 1,038,824/x
3. Step 3: Cross multiply
   672,720x = 1,038,824 × 1,038,824
4. Step 4: Simplify right side
   672,720x = 1,079,155,302,976
5. Step 5: Solve for x
   x = 1,079,155,302,976/672,720
6. Step 6: Final answer
   x = 1,604,167.12