Finding the Third Proportional to 102,003.05 and 139,062.45

Step by Step Solution

1. Step 1: Write the proportion equation
   102,003.05 : 139,062.45 = 139,062.45 : x
2. Step 2: Convert to fraction form
   102,003.05/139,062.45 = 139,062.45/x
3. Step 3: Cross multiply
   102,003.05x = 139,062.45 × 139,062.45
4. Step 4: Simplify right side
   102,003.05x = 19,338,363,696.29
5. Step 5: Solve for x
   x = 19,338,363,696.29/102,003.05
6. Step 6: Final answer
   x = 189,586.14