Finding the Third Proportional to 64,651.50 and 142,263

Step by Step Solution

1. Step 1: Write the proportion equation
   64,651.50 : 142,263 = 142,263 : x
2. Step 2: Convert to fraction form
   64,651.50/142,263 = 142,263/x
3. Step 3: Cross multiply
   64,651.50x = 142,263 × 142,263
4. Step 4: Simplify right side
   64,651.50x = 20,238,761,169
5. Step 5: Solve for x
   x = 20,238,761,169/64,651.50
6. Step 6: Final answer
   x = 313,043.95