Finding the Third Proportional to 59,271 and 139,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,271 : 139,912.50 = 139,912.50 : x
2. Step 2: Convert to fraction form
   59,271/139,912.50 = 139,912.50/x
3. Step 3: Cross multiply
   59,271x = 139,912.50 × 139,912.50
4. Step 4: Simplify right side
   59,271x = 19,575,507,656.25
5. Step 5: Solve for x
   x = 19,575,507,656.25/59,271
6. Step 6: Final answer
   x = 330,271.26