Finding the Third Proportional to 221,270 and 335,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,270 : 335,248.50 = 335,248.50 : x
2. Step 2: Convert to fraction form
   221,270/335,248.50 = 335,248.50/x
3. Step 3: Cross multiply
   221,270x = 335,248.50 × 335,248.50
4. Step 4: Simplify right side
   221,270x = 112,391,556,752.25
5. Step 5: Solve for x
   x = 112,391,556,752.25/221,270
6. Step 6: Final answer
   x = 507,938.52