Finding the Third Proportional to 323,514.50 and 680,492

Step by Step Solution

1. Step 1: Write the proportion equation
   323,514.50 : 680,492 = 680,492 : x
2. Step 2: Convert to fraction form
   323,514.50/680,492 = 680,492/x
3. Step 3: Cross multiply
   323,514.50x = 680,492 × 680,492
4. Step 4: Simplify right side
   323,514.50x = 463,069,362,064
5. Step 5: Solve for x
   x = 463,069,362,064/323,514.50
6. Step 6: Final answer
   x = 1,431,371.27