Finding the Third Proportional to 103,540.78 and 204,518.67

Step by Step Solution

1. Step 1: Write the proportion equation
   103,540.78 : 204,518.67 = 204,518.67 : x
2. Step 2: Convert to fraction form
   103,540.78/204,518.67 = 204,518.67/x
3. Step 3: Cross multiply
   103,540.78x = 204,518.67 × 204,518.67
4. Step 4: Simplify right side
   103,540.78x = 41,827,887,145.51
5. Step 5: Solve for x
   x = 41,827,887,145.51/103,540.78
6. Step 6: Final answer
   x = 403,975.00