Finding the Third Proportional to 31,264.69 and 68,458.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,264.69 : 68,458.69 = 68,458.69 : x
2. Step 2: Convert to fraction form
   31,264.69/68,458.69 = 68,458.69/x
3. Step 3: Cross multiply
   31,264.69x = 68,458.69 × 68,458.69
4. Step 4: Simplify right side
   31,264.69x = 4,686,591,894.22
5. Step 5: Solve for x
   x = 4,686,591,894.22/31,264.69
6. Step 6: Final answer
   x = 149,900.49