Finding the Third Proportional to 64,563.50 and 140,563

Step by Step Solution

1. Step 1: Write the proportion equation
   64,563.50 : 140,563 = 140,563 : x
2. Step 2: Convert to fraction form
   64,563.50/140,563 = 140,563/x
3. Step 3: Cross multiply
   64,563.50x = 140,563 × 140,563
4. Step 4: Simplify right side
   64,563.50x = 19,757,956,969
5. Step 5: Solve for x
   x = 19,757,956,969/64,563.50
6. Step 6: Final answer
   x = 306,023.64