Finding the Third Proportional to 30,378 and 63,175.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,378 : 63,175.50 = 63,175.50 : x
2. Step 2: Convert to fraction form
   30,378/63,175.50 = 63,175.50/x
3. Step 3: Cross multiply
   30,378x = 63,175.50 × 63,175.50
4. Step 4: Simplify right side
   30,378x = 3,991,143,800.25
5. Step 5: Solve for x
   x = 3,991,143,800.25/30,378
6. Step 6: Final answer
   x = 131,382.70