Finding the Third Proportional to 153,399 and 235,454.25

Step by Step Solution

1. Step 1: Write the proportion equation
   153,399 : 235,454.25 = 235,454.25 : x
2. Step 2: Convert to fraction form
   153,399/235,454.25 = 235,454.25/x
3. Step 3: Cross multiply
   153,399x = 235,454.25 × 235,454.25
4. Step 4: Simplify right side
   153,399x = 55,438,703,843.06
5. Step 5: Solve for x
   x = 55,438,703,843.06/153,399
6. Step 6: Final answer
   x = 361,401.99