Finding the Third Proportional to 138,604.50 and 303,726

Step by Step Solution

1. Step 1: Write the proportion equation
   138,604.50 : 303,726 = 303,726 : x
2. Step 2: Convert to fraction form
   138,604.50/303,726 = 303,726/x
3. Step 3: Cross multiply
   138,604.50x = 303,726 × 303,726
4. Step 4: Simplify right side
   138,604.50x = 92,249,483,076
5. Step 5: Solve for x
   x = 92,249,483,076/138,604.50
6. Step 6: Final answer
   x = 665,559.08