Finding the Third Proportional to 219,747.50 and 479,765

Step by Step Solution

1. Step 1: Write the proportion equation
   219,747.50 : 479,765 = 479,765 : x
2. Step 2: Convert to fraction form
   219,747.50/479,765 = 479,765/x
3. Step 3: Cross multiply
   219,747.50x = 479,765 × 479,765
4. Step 4: Simplify right side
   219,747.50x = 230,174,455,225
5. Step 5: Solve for x
   x = 230,174,455,225/219,747.50
6. Step 6: Final answer
   x = 1,047,449.71