Finding the Third Proportional to 193,389 and 415,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   193,389 : 415,345.50 = 415,345.50 : x
2. Step 2: Convert to fraction form
   193,389/415,345.50 = 415,345.50/x
3. Step 3: Cross multiply
   193,389x = 415,345.50 × 415,345.50
4. Step 4: Simplify right side
   193,389x = 172,511,884,370.25
5. Step 5: Solve for x
   x = 172,511,884,370.25/193,389
6. Step 6: Final answer
   x = 892,046.00