Finding the Third Proportional to 64,866 and 140,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,866 : 140,395.50 = 140,395.50 : x
2. Step 2: Convert to fraction form
   64,866/140,395.50 = 140,395.50/x
3. Step 3: Cross multiply
   64,866x = 140,395.50 × 140,395.50
4. Step 4: Simplify right side
   64,866x = 19,710,896,420.25
5. Step 5: Solve for x
   x = 19,710,896,420.25/64,866
6. Step 6: Final answer
   x = 303,871.00