Finding the Third Proportional to 101,752.50 and 221,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,752.50 : 221,011.50 = 221,011.50 : x
2. Step 2: Convert to fraction form
   101,752.50/221,011.50 = 221,011.50/x
3. Step 3: Cross multiply
   101,752.50x = 221,011.50 × 221,011.50
4. Step 4: Simplify right side
   101,752.50x = 48,846,083,132.25
5. Step 5: Solve for x
   x = 48,846,083,132.25/101,752.50
6. Step 6: Final answer
   x = 480,047.99