Finding the Third Proportional to 139,606.50 and 187,266

Step by Step Solution

1. Step 1: Write the proportion equation
   139,606.50 : 187,266 = 187,266 : x
2. Step 2: Convert to fraction form
   139,606.50/187,266 = 187,266/x
3. Step 3: Cross multiply
   139,606.50x = 187,266 × 187,266
4. Step 4: Simplify right side
   139,606.50x = 35,068,554,756
5. Step 5: Solve for x
   x = 35,068,554,756/139,606.50
6. Step 6: Final answer
   x = 251,195.72