Finding the Third Proportional to 132,514.50 and 287,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,514.50 : 287,611.50 = 287,611.50 : x
2. Step 2: Convert to fraction form
   132,514.50/287,611.50 = 287,611.50/x
3. Step 3: Cross multiply
   132,514.50x = 287,611.50 × 287,611.50
4. Step 4: Simplify right side
   132,514.50x = 82,720,374,932.25
5. Step 5: Solve for x
   x = 82,720,374,932.25/132,514.50
6. Step 6: Final answer
   x = 624,236.40