Finding the Third Proportional to 325,621.69 and 503,200.69

Step by Step Solution

1. Step 1: Write the proportion equation
   325,621.69 : 503,200.69 = 503,200.69 : x
2. Step 2: Convert to fraction form
   325,621.69/503,200.69 = 503,200.69/x
3. Step 3: Cross multiply
   325,621.69x = 503,200.69 × 503,200.69
4. Step 4: Simplify right side
   325,621.69x = 253,210,931,900.47
5. Step 5: Solve for x
   x = 253,210,931,900.47/325,621.69
6. Step 6: Final answer
   x = 777,623.06