Finding the Third Proportional to 68,042.50 and 145,922

Step by Step Solution

1. Step 1: Write the proportion equation
   68,042.50 : 145,922 = 145,922 : x
2. Step 2: Convert to fraction form
   68,042.50/145,922 = 145,922/x
3. Step 3: Cross multiply
   68,042.50x = 145,922 × 145,922
4. Step 4: Simplify right side
   68,042.50x = 21,293,230,084
5. Step 5: Solve for x
   x = 21,293,230,084/68,042.50
6. Step 6: Final answer
   x = 312,940.15