Finding the Third Proportional to 280,172 and 599,710

Step by Step Solution

1. Step 1: Write the proportion equation
   280,172 : 599,710 = 599,710 : x
2. Step 2: Convert to fraction form
   280,172/599,710 = 599,710/x
3. Step 3: Cross multiply
   280,172x = 599,710 × 599,710
4. Step 4: Simplify right side
   280,172x = 359,652,084,100
5. Step 5: Solve for x
   x = 359,652,084,100/280,172
6. Step 6: Final answer
   x = 1,283,683.18