Finding the Third Proportional to 142,912.50 and 304,323

Step by Step Solution

1. Step 1: Write the proportion equation
   142,912.50 : 304,323 = 304,323 : x
2. Step 2: Convert to fraction form
   142,912.50/304,323 = 304,323/x
3. Step 3: Cross multiply
   142,912.50x = 304,323 × 304,323
4. Step 4: Simplify right side
   142,912.50x = 92,612,488,329
5. Step 5: Solve for x
   x = 92,612,488,329/142,912.50
6. Step 6: Final answer
   x = 648,036.30