Finding the Third Proportional to 53,764 and 72,988

Step by Step Solution

1. Step 1: Write the proportion equation
   53,764 : 72,988 = 72,988 : x
2. Step 2: Convert to fraction form
   53,764/72,988 = 72,988/x
3. Step 3: Cross multiply
   53,764x = 72,988 × 72,988
4. Step 4: Simplify right side
   53,764x = 5,327,248,144
5. Step 5: Solve for x
   x = 5,327,248,144/53,764
6. Step 6: Final answer
   x = 99,085.78