Finding the Third Proportional to 39,487.50 and 73,272.09

Step by Step Solution

1. Step 1: Write the proportion equation
   39,487.50 : 73,272.09 = 73,272.09 : x
2. Step 2: Convert to fraction form
   39,487.50/73,272.09 = 73,272.09/x
3. Step 3: Cross multiply
   39,487.50x = 73,272.09 × 73,272.09
4. Step 4: Simplify right side
   39,487.50x = 5,368,799,722.51
5. Step 5: Solve for x
   x = 5,368,799,722.51/39,487.50
6. Step 6: Final answer
   x = 135,962.01