Finding the Third Proportional to 68,092.50 and 145,450

Step by Step Solution

1. Step 1: Write the proportion equation
   68,092.50 : 145,450 = 145,450 : x
2. Step 2: Convert to fraction form
   68,092.50/145,450 = 145,450/x
3. Step 3: Cross multiply
   68,092.50x = 145,450 × 145,450
4. Step 4: Simplify right side
   68,092.50x = 21,155,702,500
5. Step 5: Solve for x
   x = 21,155,702,500/68,092.50
6. Step 6: Final answer
   x = 310,690.64