Finding the Third Proportional to 236,467 and 518,921.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,467 : 518,921.50 = 518,921.50 : x
2. Step 2: Convert to fraction form
   236,467/518,921.50 = 518,921.50/x
3. Step 3: Cross multiply
   236,467x = 518,921.50 × 518,921.50
4. Step 4: Simplify right side
   236,467x = 269,279,523,162.25
5. Step 5: Solve for x
   x = 269,279,523,162.25/236,467
6. Step 6: Final answer
   x = 1,138,761.53