Finding the Third Proportional to 67,299.75 and 145,746

Step by Step Solution

1. Step 1: Write the proportion equation
   67,299.75 : 145,746 = 145,746 : x
2. Step 2: Convert to fraction form
   67,299.75/145,746 = 145,746/x
3. Step 3: Cross multiply
   67,299.75x = 145,746 × 145,746
4. Step 4: Simplify right side
   67,299.75x = 21,241,896,516
5. Step 5: Solve for x
   x = 21,241,896,516/67,299.75
6. Step 6: Final answer
   x = 315,631.14