Finding the Third Proportional to 30,877.50 and 64,368

Step by Step Solution

1. Step 1: Write the proportion equation
   30,877.50 : 64,368 = 64,368 : x
2. Step 2: Convert to fraction form
   30,877.50/64,368 = 64,368/x
3. Step 3: Cross multiply
   30,877.50x = 64,368 × 64,368
4. Step 4: Simplify right side
   30,877.50x = 4,143,239,424
5. Step 5: Solve for x
   x = 4,143,239,424/30,877.50
6. Step 6: Final answer
   x = 134,183.12