Finding the Third Proportional to 103,156 and 139,182

Step by Step Solution

1. Step 1: Write the proportion equation
   103,156 : 139,182 = 139,182 : x
2. Step 2: Convert to fraction form
   103,156/139,182 = 139,182/x
3. Step 3: Cross multiply
   103,156x = 139,182 × 139,182
4. Step 4: Simplify right side
   103,156x = 19,371,629,124
5. Step 5: Solve for x
   x = 19,371,629,124/103,156
6. Step 6: Final answer
   x = 187,789.65