Finding the Third Proportional to 30,143.25 and 63,672.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,143.25 : 63,672.75 = 63,672.75 : x
2. Step 2: Convert to fraction form
   30,143.25/63,672.75 = 63,672.75/x
3. Step 3: Cross multiply
   30,143.25x = 63,672.75 × 63,672.75
4. Step 4: Simplify right side
   30,143.25x = 4,054,219,092.56
5. Step 5: Solve for x
   x = 4,054,219,092.56/30,143.25
6. Step 6: Final answer
   x = 134,498.41