Finding the Third Proportional to 143,781.50 and 302,435

Step by Step Solution

1. Step 1: Write the proportion equation
   143,781.50 : 302,435 = 302,435 : x
2. Step 2: Convert to fraction form
   143,781.50/302,435 = 302,435/x
3. Step 3: Cross multiply
   143,781.50x = 302,435 × 302,435
4. Step 4: Simplify right side
   143,781.50x = 91,466,929,225
5. Step 5: Solve for x
   x = 91,466,929,225/143,781.50
6. Step 6: Final answer
   x = 636,152.28