Finding the Third Proportional to 71,353.50 and 109,719

Step by Step Solution

1. Step 1: Write the proportion equation
   71,353.50 : 109,719 = 109,719 : x
2. Step 2: Convert to fraction form
   71,353.50/109,719 = 109,719/x
3. Step 3: Cross multiply
   71,353.50x = 109,719 × 109,719
4. Step 4: Simplify right side
   71,353.50x = 12,038,258,961
5. Step 5: Solve for x
   x = 12,038,258,961/71,353.50
6. Step 6: Final answer
   x = 168,712.94