Finding the Third Proportional to 119,259 and 248,197.50

Step by Step Solution

1. Step 1: Write the proportion equation
   119,259 : 248,197.50 = 248,197.50 : x
2. Step 2: Convert to fraction form
   119,259/248,197.50 = 248,197.50/x
3. Step 3: Cross multiply
   119,259x = 248,197.50 × 248,197.50
4. Step 4: Simplify right side
   119,259x = 61,601,999,006.25
5. Step 5: Solve for x
   x = 61,601,999,006.25/119,259
6. Step 6: Final answer
   x = 516,539.62