Finding the Third Proportional to 64,175.50 and 139,043

Step by Step Solution

1. Step 1: Write the proportion equation
   64,175.50 : 139,043 = 139,043 : x
2. Step 2: Convert to fraction form
   64,175.50/139,043 = 139,043/x
3. Step 3: Cross multiply
   64,175.50x = 139,043 × 139,043
4. Step 4: Simplify right side
   64,175.50x = 19,332,955,849
5. Step 5: Solve for x
   x = 19,332,955,849/64,175.50
6. Step 6: Final answer
   x = 301,251.35