Finding the Third Proportional to 30,315.94 and 66,588.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,315.94 : 66,588.75 = 66,588.75 : x
2. Step 2: Convert to fraction form
   30,315.94/66,588.75 = 66,588.75/x
3. Step 3: Cross multiply
   30,315.94x = 66,588.75 × 66,588.75
4. Step 4: Simplify right side
   30,315.94x = 4,434,061,626.56
5. Step 5: Solve for x
   x = 4,434,061,626.56/30,315.94
6. Step 6: Final answer
   x = 146,261.74