Finding the Third Proportional to 71,398 and 106,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,398 : 106,317.50 = 106,317.50 : x
2. Step 2: Convert to fraction form
   71,398/106,317.50 = 106,317.50/x
3. Step 3: Cross multiply
   71,398x = 106,317.50 × 106,317.50
4. Step 4: Simplify right side
   71,398x = 11,303,410,806.25
5. Step 5: Solve for x
   x = 11,303,410,806.25/71,398
6. Step 6: Final answer
   x = 158,315.51