Finding the Third Proportional to 103,150 and 139,173

Step by Step Solution

1. Step 1: Write the proportion equation
   103,150 : 139,173 = 139,173 : x
2. Step 2: Convert to fraction form
   103,150/139,173 = 139,173/x
3. Step 3: Cross multiply
   103,150x = 139,173 × 139,173
4. Step 4: Simplify right side
   103,150x = 19,369,123,929
5. Step 5: Solve for x
   x = 19,369,123,929/103,150
6. Step 6: Final answer
   x = 187,776.29