Finding the Third Proportional to 30,295.69 and 64,715.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,295.69 : 64,715.06 = 64,715.06 : x
2. Step 2: Convert to fraction form
   30,295.69/64,715.06 = 64,715.06/x
3. Step 3: Cross multiply
   30,295.69x = 64,715.06 × 64,715.06
4. Step 4: Simplify right side
   30,295.69x = 4,188,039,314.38
5. Step 5: Solve for x
   x = 4,188,039,314.38/30,295.69
6. Step 6: Final answer
   x = 138,238.79