Finding the Third Proportional to 479,688 and 693,012

Step by Step Solution

1. Step 1: Write the proportion equation
   479,688 : 693,012 = 693,012 : x
2. Step 2: Convert to fraction form
   479,688/693,012 = 693,012/x
3. Step 3: Cross multiply
   479,688x = 693,012 × 693,012
4. Step 4: Simplify right side
   479,688x = 480,265,632,144
5. Step 5: Solve for x
   x = 480,265,632,144/479,688
6. Step 6: Final answer
   x = 1,001,204.18