Finding the Third Proportional to 351,705 and 503,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   351,705 : 503,986.50 = 503,986.50 : x
2. Step 2: Convert to fraction form
   351,705/503,986.50 = 503,986.50/x
3. Step 3: Cross multiply
   351,705x = 503,986.50 × 503,986.50
4. Step 4: Simplify right side
   351,705x = 254,002,392,182.25
5. Step 5: Solve for x
   x = 254,002,392,182.25/351,705
6. Step 6: Final answer
   x = 722,202.96