Finding the Third Proportional to 30,901.50 and 63,144

Step by Step Solution

1. Step 1: Write the proportion equation
   30,901.50 : 63,144 = 63,144 : x
2. Step 2: Convert to fraction form
   30,901.50/63,144 = 63,144/x
3. Step 3: Cross multiply
   30,901.50x = 63,144 × 63,144
4. Step 4: Simplify right side
   30,901.50x = 3,987,164,736
5. Step 5: Solve for x
   x = 3,987,164,736/30,901.50
6. Step 6: Final answer
   x = 129,028.19