Finding the Third Proportional to 342,354 and 500,853

Step by Step Solution

1. Step 1: Write the proportion equation
   342,354 : 500,853 = 500,853 : x
2. Step 2: Convert to fraction form
   342,354/500,853 = 500,853/x
3. Step 3: Cross multiply
   342,354x = 500,853 × 500,853
4. Step 4: Simplify right side
   342,354x = 250,853,727,609
5. Step 5: Solve for x
   x = 250,853,727,609/342,354
6. Step 6: Final answer
   x = 732,731.99