Finding the Third Proportional to 142,216.50 and 304,674

Step by Step Solution

1. Step 1: Write the proportion equation
   142,216.50 : 304,674 = 304,674 : x
2. Step 2: Convert to fraction form
   142,216.50/304,674 = 304,674/x
3. Step 3: Cross multiply
   142,216.50x = 304,674 × 304,674
4. Step 4: Simplify right side
   142,216.50x = 92,826,246,276
5. Step 5: Solve for x
   x = 92,826,246,276/142,216.50
6. Step 6: Final answer
   x = 652,710.81