Finding the Third Proportional to 448,048 and 709,810

Step by Step Solution

1. Step 1: Write the proportion equation
   448,048 : 709,810 = 709,810 : x
2. Step 2: Convert to fraction form
   448,048/709,810 = 709,810/x
3. Step 3: Cross multiply
   448,048x = 709,810 × 709,810
4. Step 4: Simplify right side
   448,048x = 503,830,236,100
5. Step 5: Solve for x
   x = 503,830,236,100/448,048
6. Step 6: Final answer
   x = 1,124,500.58