Finding the Third Proportional to 122,298 and 268,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,298 : 268,651.50 = 268,651.50 : x
2. Step 2: Convert to fraction form
   122,298/268,651.50 = 268,651.50/x
3. Step 3: Cross multiply
   122,298x = 268,651.50 × 268,651.50
4. Step 4: Simplify right side
   122,298x = 72,173,628,452.25
5. Step 5: Solve for x
   x = 72,173,628,452.25/122,298
6. Step 6: Final answer
   x = 590,145.62