Finding the Third Proportional to 228,210 and 357,982.50

Step by Step Solution

1. Step 1: Write the proportion equation
   228,210 : 357,982.50 = 357,982.50 : x
2. Step 2: Convert to fraction form
   228,210/357,982.50 = 357,982.50/x
3. Step 3: Cross multiply
   228,210x = 357,982.50 × 357,982.50
4. Step 4: Simplify right side
   228,210x = 128,151,470,306.25
5. Step 5: Solve for x
   x = 128,151,470,306.25/228,210
6. Step 6: Final answer
   x = 561,550.63