Finding the Third Proportional to 31,336.88 and 67,042.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,336.88 : 67,042.69 = 67,042.69 : x
2. Step 2: Convert to fraction form
   31,336.88/67,042.69 = 67,042.69/x
3. Step 3: Cross multiply
   31,336.88x = 67,042.69 × 67,042.69
4. Step 4: Simplify right side
   31,336.88x = 4,494,721,947.22
5. Step 5: Solve for x
   x = 4,494,721,947.22/31,336.88
6. Step 6: Final answer
   x = 143,432.36