Finding the Third Proportional to 31,668.75 and 67,574.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,668.75 : 67,574.25 = 67,574.25 : x
2. Step 2: Convert to fraction form
   31,668.75/67,574.25 = 67,574.25/x
3. Step 3: Cross multiply
   31,668.75x = 67,574.25 × 67,574.25
4. Step 4: Simplify right side
   31,668.75x = 4,566,279,263.06
5. Step 5: Solve for x
   x = 4,566,279,263.06/31,668.75
6. Step 6: Final answer
   x = 144,188.81