Finding the Third Proportional to 31,557.09 and 66,736.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,557.09 : 66,736.41 = 66,736.41 : x
2. Step 2: Convert to fraction form
   31,557.09/66,736.41 = 66,736.41/x
3. Step 3: Cross multiply
   31,557.09x = 66,736.41 × 66,736.41
4. Step 4: Simplify right side
   31,557.09x = 4,453,747,919.17
5. Step 5: Solve for x
   x = 4,453,747,919.17/31,557.09
6. Step 6: Final answer
   x = 141,133.02