Finding the Third Proportional to 124,665 and 272,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,665 : 272,698.50 = 272,698.50 : x
2. Step 2: Convert to fraction form
   124,665/272,698.50 = 272,698.50/x
3. Step 3: Cross multiply
   124,665x = 272,698.50 × 272,698.50
4. Step 4: Simplify right side
   124,665x = 74,364,471,902.25
5. Step 5: Solve for x
   x = 74,364,471,902.25/124,665
6. Step 6: Final answer
   x = 596,514.43