Finding the Third Proportional to 128,674.50 and 185,631

Step by Step Solution

1. Step 1: Write the proportion equation
   128,674.50 : 185,631 = 185,631 : x
2. Step 2: Convert to fraction form
   128,674.50/185,631 = 185,631/x
3. Step 3: Cross multiply
   128,674.50x = 185,631 × 185,631
4. Step 4: Simplify right side
   128,674.50x = 34,458,868,161
5. Step 5: Solve for x
   x = 34,458,868,161/128,674.50
6. Step 6: Final answer
   x = 267,798.73