Finding the Third Proportional to 31,611.38 and 68,123.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,611.38 : 68,123.25 = 68,123.25 : x
2. Step 2: Convert to fraction form
   31,611.38/68,123.25 = 68,123.25/x
3. Step 3: Cross multiply
   31,611.38x = 68,123.25 × 68,123.25
4. Step 4: Simplify right side
   31,611.38x = 4,640,777,190.56
5. Step 5: Solve for x
   x = 4,640,777,190.56/31,611.38
6. Step 6: Final answer
   x = 146,807.19