Finding the Third Proportional to 30,667.50 and 64,656

Step by Step Solution

1. Step 1: Write the proportion equation
   30,667.50 : 64,656 = 64,656 : x
2. Step 2: Convert to fraction form
   30,667.50/64,656 = 64,656/x
3. Step 3: Cross multiply
   30,667.50x = 64,656 × 64,656
4. Step 4: Simplify right side
   30,667.50x = 4,180,398,336
5. Step 5: Solve for x
   x = 4,180,398,336/30,667.50
6. Step 6: Final answer
   x = 136,313.63