Finding the Third Proportional to 131,251.50 and 287,926.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,251.50 : 287,926.50 = 287,926.50 : x
2. Step 2: Convert to fraction form
   131,251.50/287,926.50 = 287,926.50/x
3. Step 3: Cross multiply
   131,251.50x = 287,926.50 × 287,926.50
4. Step 4: Simplify right side
   131,251.50x = 82,901,669,402.25
5. Step 5: Solve for x
   x = 82,901,669,402.25/131,251.50
6. Step 6: Final answer
   x = 631,624.55