Finding the Third Proportional to 31,035.38 and 66,989.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,035.38 : 66,989.25 = 66,989.25 : x
2. Step 2: Convert to fraction form
   31,035.38/66,989.25 = 66,989.25/x
3. Step 3: Cross multiply
   31,035.38x = 66,989.25 × 66,989.25
4. Step 4: Simplify right side
   31,035.38x = 4,487,559,615.56
5. Step 5: Solve for x
   x = 4,487,559,615.56/31,035.38
6. Step 6: Final answer
   x = 144,594.99