Finding the Third Proportional to 136,542.38 and 212,004

Step by Step Solution

1. Step 1: Write the proportion equation
   136,542.38 : 212,004 = 212,004 : x
2. Step 2: Convert to fraction form
   136,542.38/212,004 = 212,004/x
3. Step 3: Cross multiply
   136,542.38x = 212,004 × 212,004
4. Step 4: Simplify right side
   136,542.38x = 44,945,696,016
5. Step 5: Solve for x
   x = 44,945,696,016/136,542.38
6. Step 6: Final answer
   x = 329,170.31