Finding the Third Proportional to 142,915.50 and 305,514

Step by Step Solution

1. Step 1: Write the proportion equation
   142,915.50 : 305,514 = 305,514 : x
2. Step 2: Convert to fraction form
   142,915.50/305,514 = 305,514/x
3. Step 3: Cross multiply
   142,915.50x = 305,514 × 305,514
4. Step 4: Simplify right side
   142,915.50x = 93,338,804,196
5. Step 5: Solve for x
   x = 93,338,804,196/142,915.50
6. Step 6: Final answer
   x = 653,104.84