Finding the Third Proportional to 102,323.25 and 209,718

Step by Step Solution

1. Step 1: Write the proportion equation
   102,323.25 : 209,718 = 209,718 : x
2. Step 2: Convert to fraction form
   102,323.25/209,718 = 209,718/x
3. Step 3: Cross multiply
   102,323.25x = 209,718 × 209,718
4. Step 4: Simplify right side
   102,323.25x = 43,981,639,524
5. Step 5: Solve for x
   x = 43,981,639,524/102,323.25
6. Step 6: Final answer
   x = 429,830.36