Finding the Third Proportional to 64,529.50 and 139,437

Step by Step Solution

1. Step 1: Write the proportion equation
   64,529.50 : 139,437 = 139,437 : x
2. Step 2: Convert to fraction form
   64,529.50/139,437 = 139,437/x
3. Step 3: Cross multiply
   64,529.50x = 139,437 × 139,437
4. Step 4: Simplify right side
   64,529.50x = 19,442,676,969
5. Step 5: Solve for x
   x = 19,442,676,969/64,529.50
6. Step 6: Final answer
   x = 301,299.05