Finding the Third Proportional to 64,809 and 87,098

Step by Step Solution

1. Step 1: Write the proportion equation
   64,809 : 87,098 = 87,098 : x
2. Step 2: Convert to fraction form
   64,809/87,098 = 87,098/x
3. Step 3: Cross multiply
   64,809x = 87,098 × 87,098
4. Step 4: Simplify right side
   64,809x = 7,586,061,604
5. Step 5: Solve for x
   x = 7,586,061,604/64,809
6. Step 6: Final answer
   x = 117,052.59