Finding the Third Proportional to 197,262 and 279,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   197,262 : 279,121.50 = 279,121.50 : x
2. Step 2: Convert to fraction form
   197,262/279,121.50 = 279,121.50/x
3. Step 3: Cross multiply
   197,262x = 279,121.50 × 279,121.50
4. Step 4: Simplify right side
   197,262x = 77,908,811,762.25
5. Step 5: Solve for x
   x = 77,908,811,762.25/197,262
6. Step 6: Final answer
   x = 394,950.94