Finding the Third Proportional to 64,066.50 and 137,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,066.50 : 137,605.50 = 137,605.50 : x
2. Step 2: Convert to fraction form
   64,066.50/137,605.50 = 137,605.50/x
3. Step 3: Cross multiply
   64,066.50x = 137,605.50 × 137,605.50
4. Step 4: Simplify right side
   64,066.50x = 18,935,273,630.25
5. Step 5: Solve for x
   x = 18,935,273,630.25/64,066.50
6. Step 6: Final answer
   x = 295,556.55