Finding the Third Proportional to 60,039 and 139,000.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,039 : 139,000.50 = 139,000.50 : x
2. Step 2: Convert to fraction form
   60,039/139,000.50 = 139,000.50/x
3. Step 3: Cross multiply
   60,039x = 139,000.50 × 139,000.50
4. Step 4: Simplify right side
   60,039x = 19,321,139,000.25
5. Step 5: Solve for x
   x = 19,321,139,000.25/60,039
6. Step 6: Final answer
   x = 321,809.81