Finding the Third Proportional to 99,811.50 and 150,122.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,811.50 : 150,122.25 = 150,122.25 : x
2. Step 2: Convert to fraction form
   99,811.50/150,122.25 = 150,122.25/x
3. Step 3: Cross multiply
   99,811.50x = 150,122.25 × 150,122.25
4. Step 4: Simplify right side
   99,811.50x = 22,536,689,945.06
5. Step 5: Solve for x
   x = 22,536,689,945.06/99,811.50
6. Step 6: Final answer
   x = 225,792.52