Finding the Third Proportional to 64,623 and 137,073

Step by Step Solution

1. Step 1: Write the proportion equation
   64,623 : 137,073 = 137,073 : x
2. Step 2: Convert to fraction form
   64,623/137,073 = 137,073/x
3. Step 3: Cross multiply
   64,623x = 137,073 × 137,073
4. Step 4: Simplify right side
   64,623x = 18,789,007,329
5. Step 5: Solve for x
   x = 18,789,007,329/64,623
6. Step 6: Final answer
   x = 290,747.99