Finding the Third Proportional to 31,190.06 and 68,412.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,190.06 : 68,412.94 = 68,412.94 : x
2. Step 2: Convert to fraction form
   31,190.06/68,412.94 = 68,412.94/x
3. Step 3: Cross multiply
   31,190.06x = 68,412.94 × 68,412.94
4. Step 4: Simplify right side
   31,190.06x = 4,680,330,017.38
5. Step 5: Solve for x
   x = 4,680,330,017.38/31,190.06
6. Step 6: Final answer
   x = 150,058.37