Finding the Third Proportional to 72,811.50 and 155,746

Step by Step Solution

1. Step 1: Write the proportion equation
   72,811.50 : 155,746 = 155,746 : x
2. Step 2: Convert to fraction form
   72,811.50/155,746 = 155,746/x
3. Step 3: Cross multiply
   72,811.50x = 155,746 × 155,746
4. Step 4: Simplify right side
   72,811.50x = 24,256,816,516
5. Step 5: Solve for x
   x = 24,256,816,516/72,811.50
6. Step 6: Final answer
   x = 333,145.40