Finding the Third Proportional to 143,848.50 and 302,865

Step by Step Solution

1. Step 1: Write the proportion equation
   143,848.50 : 302,865 = 302,865 : x
2. Step 2: Convert to fraction form
   143,848.50/302,865 = 302,865/x
3. Step 3: Cross multiply
   143,848.50x = 302,865 × 302,865
4. Step 4: Simplify right side
   143,848.50x = 91,727,208,225
5. Step 5: Solve for x
   x = 91,727,208,225/143,848.50
6. Step 6: Final answer
   x = 637,665.38