Finding the Third Proportional to 31,136.06 and 68,115.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,136.06 : 68,115.94 = 68,115.94 : x
2. Step 2: Convert to fraction form
   31,136.06/68,115.94 = 68,115.94/x
3. Step 3: Cross multiply
   31,136.06x = 68,115.94 × 68,115.94
4. Step 4: Simplify right side
   31,136.06x = 4,639,780,941.50
5. Step 5: Solve for x
   x = 4,639,780,941.50/31,136.06
6. Step 6: Final answer
   x = 149,016.30