Finding the Third Proportional to 31,177.13 and 64,571.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,177.13 : 64,571.63 = 64,571.63 : x
2. Step 2: Convert to fraction form
   31,177.13/64,571.63 = 64,571.63/x
3. Step 3: Cross multiply
   31,177.13x = 64,571.63 × 64,571.63
4. Step 4: Simplify right side
   31,177.13x = 4,169,494,755.14
5. Step 5: Solve for x
   x = 4,169,494,755.14/31,177.13
6. Step 6: Final answer
   x = 133,735.70