Finding the Third Proportional to 64,682.50 and 139,571

Step by Step Solution

1. Step 1: Write the proportion equation
   64,682.50 : 139,571 = 139,571 : x
2. Step 2: Convert to fraction form
   64,682.50/139,571 = 139,571/x
3. Step 3: Cross multiply
   64,682.50x = 139,571 × 139,571
4. Step 4: Simplify right side
   64,682.50x = 19,480,064,041
5. Step 5: Solve for x
   x = 19,480,064,041/64,682.50
6. Step 6: Final answer
   x = 301,164.37