Finding the Third Proportional to 207,323.50 and 317,538

Step by Step Solution

1. Step 1: Write the proportion equation
   207,323.50 : 317,538 = 317,538 : x
2. Step 2: Convert to fraction form
   207,323.50/317,538 = 317,538/x
3. Step 3: Cross multiply
   207,323.50x = 317,538 × 317,538
4. Step 4: Simplify right side
   207,323.50x = 100,830,381,444
5. Step 5: Solve for x
   x = 100,830,381,444/207,323.50
6. Step 6: Final answer
   x = 486,343.23