Finding the Third Proportional to 111,385 and 240,157

Step by Step Solution

1. Step 1: Write the proportion equation
   111,385 : 240,157 = 240,157 : x
2. Step 2: Convert to fraction form
   111,385/240,157 = 240,157/x
3. Step 3: Cross multiply
   111,385x = 240,157 × 240,157
4. Step 4: Simplify right side
   111,385x = 57,675,384,649
5. Step 5: Solve for x
   x = 57,675,384,649/111,385
6. Step 6: Final answer
   x = 517,802.08