Finding the Third Proportional to 392,320.69 and 831,727.69

Step by Step Solution

1. Step 1: Write the proportion equation
   392,320.69 : 831,727.69 = 831,727.69 : x
2. Step 2: Convert to fraction form
   392,320.69/831,727.69 = 831,727.69/x
3. Step 3: Cross multiply
   392,320.69x = 831,727.69 × 831,727.69
4. Step 4: Simplify right side
   392,320.69x = 691,770,946,154.10
5. Step 5: Solve for x
   x = 691,770,946,154.10/392,320.69
6. Step 6: Final answer
   x = 1,763,279.30