Finding the Third Proportional to 142,946.50 and 304,381

Step by Step Solution

1. Step 1: Write the proportion equation
   142,946.50 : 304,381 = 304,381 : x
2. Step 2: Convert to fraction form
   142,946.50/304,381 = 304,381/x
3. Step 3: Cross multiply
   142,946.50x = 304,381 × 304,381
4. Step 4: Simplify right side
   142,946.50x = 92,647,793,161
5. Step 5: Solve for x
   x = 92,647,793,161/142,946.50
6. Step 6: Final answer
   x = 648,129.15