Finding the Third Proportional to 71,322 and 99,703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,322 : 99,703.50 = 99,703.50 : x
2. Step 2: Convert to fraction form
   71,322/99,703.50 = 99,703.50/x
3. Step 3: Cross multiply
   71,322x = 99,703.50 × 99,703.50
4. Step 4: Simplify right side
   71,322x = 9,940,787,912.25
5. Step 5: Solve for x
   x = 9,940,787,912.25/71,322
6. Step 6: Final answer
   x = 139,378.98