Finding the Third Proportional to 109,430 and 235,207.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,430 : 235,207.50 = 235,207.50 : x
2. Step 2: Convert to fraction form
   109,430/235,207.50 = 235,207.50/x
3. Step 3: Cross multiply
   109,430x = 235,207.50 × 235,207.50
4. Step 4: Simplify right side
   109,430x = 55,322,568,056.25
5. Step 5: Solve for x
   x = 55,322,568,056.25/109,430
6. Step 6: Final answer
   x = 505,552.12