Finding the Third Proportional to 39,173.63 and 70,571.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,173.63 : 70,571.25 = 70,571.25 : x
2. Step 2: Convert to fraction form
   39,173.63/70,571.25 = 70,571.25/x
3. Step 3: Cross multiply
   39,173.63x = 70,571.25 × 70,571.25
4. Step 4: Simplify right side
   39,173.63x = 4,980,301,326.56
5. Step 5: Solve for x
   x = 4,980,301,326.56/39,173.63
6. Step 6: Final answer
   x = 127,134.04