Finding the Third Proportional to 53,383.50 and 72,387

Step by Step Solution

1. Step 1: Write the proportion equation
   53,383.50 : 72,387 = 72,387 : x
2. Step 2: Convert to fraction form
   53,383.50/72,387 = 72,387/x
3. Step 3: Cross multiply
   53,383.50x = 72,387 × 72,387
4. Step 4: Simplify right side
   53,383.50x = 5,239,877,769
5. Step 5: Solve for x
   x = 5,239,877,769/53,383.50
6. Step 6: Final answer
   x = 98,155.38