Finding the Third Proportional to 131,274 and 287,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,274 : 287,968.50 = 287,968.50 : x
2. Step 2: Convert to fraction form
   131,274/287,968.50 = 287,968.50/x
3. Step 3: Cross multiply
   131,274x = 287,968.50 × 287,968.50
4. Step 4: Simplify right side
   131,274x = 82,925,856,992.25
5. Step 5: Solve for x
   x = 82,925,856,992.25/131,274
6. Step 6: Final answer
   x = 631,700.54