Finding the Third Proportional to 321,788 and 482,061

Step by Step Solution

1. Step 1: Write the proportion equation
   321,788 : 482,061 = 482,061 : x
2. Step 2: Convert to fraction form
   321,788/482,061 = 482,061/x
3. Step 3: Cross multiply
   321,788x = 482,061 × 482,061
4. Step 4: Simplify right side
   321,788x = 232,382,807,721
5. Step 5: Solve for x
   x = 232,382,807,721/321,788
6. Step 6: Final answer
   x = 722,161.20