Finding the Third Proportional to 31,574.81 and 67,827.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,574.81 : 67,827.38 = 67,827.38 : x
2. Step 2: Convert to fraction form
   31,574.81/67,827.38 = 67,827.38/x
3. Step 3: Cross multiply
   31,574.81x = 67,827.38 × 67,827.38
4. Step 4: Simplify right side
   31,574.81x = 4,600,552,799.39
5. Step 5: Solve for x
   x = 4,600,552,799.39/31,574.81
6. Step 6: Final answer
   x = 145,703.25