Finding the Third Proportional to 72,724 and 98,211

Step by Step Solution

1. Step 1: Write the proportion equation
   72,724 : 98,211 = 98,211 : x
2. Step 2: Convert to fraction form
   72,724/98,211 = 98,211/x
3. Step 3: Cross multiply
   72,724x = 98,211 × 98,211
4. Step 4: Simplify right side
   72,724x = 9,645,400,521
5. Step 5: Solve for x
   x = 9,645,400,521/72,724
6. Step 6: Final answer
   x = 132,630.23