Finding the Third Proportional to 31,557.75 and 68,036.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,557.75 : 68,036.25 = 68,036.25 : x
2. Step 2: Convert to fraction form
   31,557.75/68,036.25 = 68,036.25/x
3. Step 3: Cross multiply
   31,557.75x = 68,036.25 × 68,036.25
4. Step 4: Simplify right side
   31,557.75x = 4,628,931,314.06
5. Step 5: Solve for x
   x = 4,628,931,314.06/31,557.75
6. Step 6: Final answer
   x = 146,681.28