Finding the Third Proportional to 111,557.25 and 245,156.63

Step by Step Solution

1. Step 1: Write the proportion equation
   111,557.25 : 245,156.63 = 245,156.63 : x
2. Step 2: Convert to fraction form
   111,557.25/245,156.63 = 245,156.63/x
3. Step 3: Cross multiply
   111,557.25x = 245,156.63 × 245,156.63
4. Step 4: Simplify right side
   111,557.25x = 60,101,770,781.39
5. Step 5: Solve for x
   x = 60,101,770,781.39/111,557.25
6. Step 6: Final answer
   x = 538,752.71