Finding the Third Proportional to 112,509 and 237,658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,509 : 237,658.50 = 237,658.50 : x
2. Step 2: Convert to fraction form
   112,509/237,658.50 = 237,658.50/x
3. Step 3: Cross multiply
   112,509x = 237,658.50 × 237,658.50
4. Step 4: Simplify right side
   112,509x = 56,481,562,622.25
5. Step 5: Solve for x
   x = 56,481,562,622.25/112,509
6. Step 6: Final answer
   x = 502,018.17