Finding the Third Proportional to 103,158 and 139,184

Step by Step Solution

1. Step 1: Write the proportion equation
   103,158 : 139,184 = 139,184 : x
2. Step 2: Convert to fraction form
   103,158/139,184 = 139,184/x
3. Step 3: Cross multiply
   103,158x = 139,184 × 139,184
4. Step 4: Simplify right side
   103,158x = 19,372,185,856
5. Step 5: Solve for x
   x = 19,372,185,856/103,158
6. Step 6: Final answer
   x = 187,791.41