Finding the Third Proportional to 99,400.50 and 158,321.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,400.50 : 158,321.25 = 158,321.25 : x
2. Step 2: Convert to fraction form
   99,400.50/158,321.25 = 158,321.25/x
3. Step 3: Cross multiply
   99,400.50x = 158,321.25 × 158,321.25
4. Step 4: Simplify right side
   99,400.50x = 25,065,618,201.56
5. Step 5: Solve for x
   x = 25,065,618,201.56/99,400.50
6. Step 6: Final answer
   x = 252,167.93