Finding the Third Proportional to 132,433.50 and 287,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,433.50 : 287,442.50 = 287,442.50 : x
2. Step 2: Convert to fraction form
   132,433.50/287,442.50 = 287,442.50/x
3. Step 3: Cross multiply
   132,433.50x = 287,442.50 × 287,442.50
4. Step 4: Simplify right side
   132,433.50x = 82,623,190,806.25
5. Step 5: Solve for x
   x = 82,623,190,806.25/132,433.50
6. Step 6: Final answer
   x = 623,884.37