Finding the Third Proportional to 111,558.50 and 245,159

Step by Step Solution

1. Step 1: Write the proportion equation
   111,558.50 : 245,159 = 245,159 : x
2. Step 2: Convert to fraction form
   111,558.50/245,159 = 245,159/x
3. Step 3: Cross multiply
   111,558.50x = 245,159 × 245,159
4. Step 4: Simplify right side
   111,558.50x = 60,102,935,281
5. Step 5: Solve for x
   x = 60,102,935,281/111,558.50
6. Step 6: Final answer
   x = 538,757.11