Finding the Third Proportional to 143,724.38 and 302,346

Step by Step Solution

1. Step 1: Write the proportion equation
   143,724.38 : 302,346 = 302,346 : x
2. Step 2: Convert to fraction form
   143,724.38/302,346 = 302,346/x
3. Step 3: Cross multiply
   143,724.38x = 302,346 × 302,346
4. Step 4: Simplify right side
   143,724.38x = 91,413,103,716
5. Step 5: Solve for x
   x = 91,413,103,716/143,724.38
6. Step 6: Final answer
   x = 636,030.62