Finding the Third Proportional to 100,969.50 and 221,523

Step by Step Solution

1. Step 1: Write the proportion equation
   100,969.50 : 221,523 = 221,523 : x
2. Step 2: Convert to fraction form
   100,969.50/221,523 = 221,523/x
3. Step 3: Cross multiply
   100,969.50x = 221,523 × 221,523
4. Step 4: Simplify right side
   100,969.50x = 49,072,439,529
5. Step 5: Solve for x
   x = 49,072,439,529/100,969.50
6. Step 6: Final answer
   x = 486,012.50