Finding the Third Proportional to 64,283.50 and 139,529

Step by Step Solution

1. Step 1: Write the proportion equation
   64,283.50 : 139,529 = 139,529 : x
2. Step 2: Convert to fraction form
   64,283.50/139,529 = 139,529/x
3. Step 3: Cross multiply
   64,283.50x = 139,529 × 139,529
4. Step 4: Simplify right side
   64,283.50x = 19,468,341,841
5. Step 5: Solve for x
   x = 19,468,341,841/64,283.50
6. Step 6: Final answer
   x = 302,851.30