Finding the Third Proportional to 111,271 and 247,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,271 : 247,419.50 = 247,419.50 : x
2. Step 2: Convert to fraction form
   111,271/247,419.50 = 247,419.50/x
3. Step 3: Cross multiply
   111,271x = 247,419.50 × 247,419.50
4. Step 4: Simplify right side
   111,271x = 61,216,408,980.25
5. Step 5: Solve for x
   x = 61,216,408,980.25/111,271
6. Step 6: Final answer
   x = 550,156.01