Finding the Third Proportional to 111,982.50 and 245,808

Step by Step Solution

1. Step 1: Write the proportion equation
   111,982.50 : 245,808 = 245,808 : x
2. Step 2: Convert to fraction form
   111,982.50/245,808 = 245,808/x
3. Step 3: Cross multiply
   111,982.50x = 245,808 × 245,808
4. Step 4: Simplify right side
   111,982.50x = 60,421,572,864
5. Step 5: Solve for x
   x = 60,421,572,864/111,982.50
6. Step 6: Final answer
   x = 539,562.64