Finding the Third Proportional to 103,154 and 139,179

Step by Step Solution

1. Step 1: Write the proportion equation
   103,154 : 139,179 = 139,179 : x
2. Step 2: Convert to fraction form
   103,154/139,179 = 139,179/x
3. Step 3: Cross multiply
   103,154x = 139,179 × 139,179
4. Step 4: Simplify right side
   103,154x = 19,370,794,041
5. Step 5: Solve for x
   x = 19,370,794,041/103,154
6. Step 6: Final answer
   x = 187,785.20