Finding the Third Proportional to 133,033.50 and 287,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,033.50 : 287,167.50 = 287,167.50 : x
2. Step 2: Convert to fraction form
   133,033.50/287,167.50 = 287,167.50/x
3. Step 3: Cross multiply
   133,033.50x = 287,167.50 × 287,167.50
4. Step 4: Simplify right side
   133,033.50x = 82,465,173,056.25
5. Step 5: Solve for x
   x = 82,465,173,056.25/133,033.50
6. Step 6: Final answer
   x = 619,882.76