Finding the Third Proportional to 246,499.50 and 517,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   246,499.50 : 517,900.50 = 517,900.50 : x
2. Step 2: Convert to fraction form
   246,499.50/517,900.50 = 517,900.50/x
3. Step 3: Cross multiply
   246,499.50x = 517,900.50 × 517,900.50
4. Step 4: Simplify right side
   246,499.50x = 268,220,927,900.25
5. Step 5: Solve for x
   x = 268,220,927,900.25/246,499.50
6. Step 6: Final answer
   x = 1,088,119.56