Finding the Third Proportional to 31,563.75 and 69,066.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,563.75 : 69,066.75 = 69,066.75 : x
2. Step 2: Convert to fraction form
   31,563.75/69,066.75 = 69,066.75/x
3. Step 3: Cross multiply
   31,563.75x = 69,066.75 × 69,066.75
4. Step 4: Simplify right side
   31,563.75x = 4,770,215,955.56
5. Step 5: Solve for x
   x = 4,770,215,955.56/31,563.75
6. Step 6: Final answer
   x = 151,129.57