Finding the Third Proportional to 92,488.50 and 138,745.69

Step by Step Solution

1. Step 1: Write the proportion equation
   92,488.50 : 138,745.69 = 138,745.69 : x
2. Step 2: Convert to fraction form
   92,488.50/138,745.69 = 138,745.69/x
3. Step 3: Cross multiply
   92,488.50x = 138,745.69 × 138,745.69
4. Step 4: Simplify right side
   92,488.50x = 19,250,365,799.85
5. Step 5: Solve for x
   x = 19,250,365,799.85/92,488.50
6. Step 6: Final answer
   x = 208,137.94