Finding the Third Proportional to 32,907.50 and 71,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,907.50 : 71,280.50 = 71,280.50 : x
2. Step 2: Convert to fraction form
   32,907.50/71,280.50 = 71,280.50/x
3. Step 3: Cross multiply
   32,907.50x = 71,280.50 × 71,280.50
4. Step 4: Simplify right side
   32,907.50x = 5,080,909,680.25
5. Step 5: Solve for x
   x = 5,080,909,680.25/32,907.50
6. Step 6: Final answer
   x = 154,399.75