Finding the Third Proportional to 155,118 and 319,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,118 : 319,936.50 = 319,936.50 : x
2. Step 2: Convert to fraction form
   155,118/319,936.50 = 319,936.50/x
3. Step 3: Cross multiply
   155,118x = 319,936.50 × 319,936.50
4. Step 4: Simplify right side
   155,118x = 102,359,364,032.25
5. Step 5: Solve for x
   x = 102,359,364,032.25/155,118
6. Step 6: Final answer
   x = 659,880.63